How to enable game acceleration on Xiaomi Redmi 9C: hidden settings and optimization

Xiaomi Redmi 9C is a budget smartphone with a Helio G35 processor, which is often criticized for poor performance in games. However, even on this device, you can significantly improve FPS and smoothness if you properly configure hidden system settings. In this article, proven ways to overclock games without risking to iron, including activating the Game Turbo, optimizing the GPU and managing background processes.

It is important to understand: Redmi 9C will not be a flagship, but the right settings will allow you to run PUBG Mobile at 30-40 FPS, Call of Duty: Mobile at medium settings, and Genshin Impact with minimal lags. We will not use ROOT or custom firmware: all methods work on standard MIUI 12/13/14 and are safe for warranty.

1. Activation of Game Turbo mode

Game Turbo is Xiaomiโ€™s proprietary technology that optimizes smartphone resources for games: blocks notifications, clears RAM and prioritizes the GPU. On Redmi 9C, this mode is hidden by default, but it can be enabled through security settings.

Instructions:

  • ๐Ÿ“ฑ Open the Settings. โ†’ Annexes โ†’ Application management.
  • ๐Ÿ” In the search box, enter Game Turbo (or โ€œGame Turboโ€ mode).
  • ๐Ÿ”ง Click on the found application and select Launch.
  • โšก Turn on the Game Turbo AutoRun switch and add the games you want to play to the list.

Added to Game Turbo | list

Background sync is off |

Activated "Do Not Disturb" mode during the game |

Check the temperature of the processor after 10 minutes of play-->

After activating the mode, you will notice:

  • ๐ŸŽฎ Increase FPS on 10-15% (optimizing CPU/GPU).
  • ๐Ÿ“ต Blocking notifications and calls during the game.
  • ๐Ÿ”„ Automatic cleaning of RAM when starting the game.

๐Ÿ’ก

If your game is not listed in Game Turbo, add it manually through Settings โ†’ Features โ†’ Game Turbo โ†’ Add the game.

2. GPU overclocking through the engineering menu

The Redmi 9C uses the PowerVR GE8320 GPU, which is conservative by default. The MTK Engineer Mode can increase GPU performance by 20-30%, but this requires caution: improper settings will lead to overheating.

How to open the engineering menu:

  1. Open the Phone app and enter the combination: ##36446337###.
  2. Go to the Hardware Testing section โ†’ GPU.
  3. Find the options for GPU Frequency and GPU Governor.
ParameterDefault valueRecommended valueThe effect
GPU Frequency570 MHz650-700 MHz+15-20% FPS in games
GPU Governormsm-adreno-tzperformanceReducing lags under high load
GPU VoltageAutomobile+5% (not higher!)Frequency stabilization but increases heat

โš ๏ธ Attention: After frequency changes GPU Check the temperature of the processor after 15 minutes of play.ยฐC, return the default settings. Prolonged overheating above 60.ยฐC reduces the life of the chipset.

PUBG Mobile|

Call of Duty: Mobile|

Genshin Impact|

Free Fire|

Other (write in the comments)-->

3. Optimization of RAM and background processes

Redmi 9C has only 2/3GB of RAM, which is critically low for modern games. To free up the maximum memory, you need to turn off unnecessary services and limit background processes. This will give +5-10 FPS in heavy games.

Action list:

  • ๐Ÿšซ Turn off auto-start applications: Settings โ†’ Annexes โ†’ Autostart control.
  • ๐Ÿ—‘๏ธ Clear the cache: Settings โ†’ Warehouse โ†’ Clear the cache (especially for Google Play Services) MIUI System).
  • ๐Ÿ”„ Enable Performance Mode in Settings โ†’ Battery โ†’ Power regimens.
  • ๐Ÿ“ด Turn it off. MIUI Optimization (if any) ROOT): This service software eats up to 300 MB of RAM.

For a radical memory cleanup, use the ADB command (PC required):

adb shell am broadcast -a android.intent.action.CLOSE_SYSTEM_DIALOGS

This command forcibly shuts down all background processes, but it can cause some system applications to crash, and use it only before you start a game.

What happens if you turn off MIUI Optimization?
Disabling this service removes the restrictions MIUI on background processes, which can lead to: - Increased battery life (on the basis of the 10-15%). - Possible bugs with notifications (for example, will not receive push notifications from the user). Viber/Telegram). - Unstable navigation gestures are recommended to be turned off only if you are ready for experiments or have a ROOT-rollback.

4.Tune graphics in games

Even with the overclocked GPU, Redmi 9C wonโ€™t pull the maximum graphics settings. The optimal balance between FPS and picture quality is the key to smooth gameplay. Below is a table of recommended settings for popular games:

Game.GraphicsFPSAdditional settings
PUBG MobileSmooth + Medium30-40 FPSTurn off shadows, antialiasing and motion blur
Call of Duty: MobileLow40-50 FPSDepth of Field and Real-Time Shadows
Genshin ImpactLowest (16:9)20-25 FPSSet the resolution to 720p and turn off all particle effects
Free FireSmooth + Ultra60 FPS (with drawdowns)Enable High FPS Mode in the game settings

For an additional FPS boost, use GFX Tools (a game graphics modification app). For example, PUBG Mobile can use a config:

Graphics: Smooth




FPS: Ultra (40 FPS)




Style: Colorful




Shadows: Off




Anti-Aliasing: Off

โš ๏ธ Attention: Use GFX Tools can lead to bans in online games (especially in the online games). PUBG Apply these settings at your own risk or back up your account.

5.CPU Cooling: How to Avoid Trottling

Trottling (automatically lowering CPU/GPU frequencies when overheated) is a major problem with the Redmi 9C during games. At temperatures above 60ยฐC, the Helio G35 processor begins to choke performance, leading to sharp drawdowns in FPS.

  • โ„๏ธ Use a cooling case or stand with a fan (cheap options are available on AliExpress).
  • ๐Ÿ”‹ Play with the battery charge 40-80% โ€” With a low or full charge, the smartphone warms up more strongly.
  • ๐ŸŒก๏ธ Install the app CPU Monitor for real-time temperature monitoring.
  • ๐Ÿšช Close all back covers and cases during the game - they block the heat sink.

If the smartphone is already overheated, force it to cool:

  1. Close the game.
  2. Place the device in a cool place (but not in the refrigerator!).
  3. Turn off charging and mobile internet for 5-10 minutes.
  4. Start the game again only after the temperature drops below 45ยฐC.

๐Ÿ’ก

Trottling on the Helio G35 starts at 60ยฐC, but already at 50ยฐC, FPS drawdowns are noticeable. The optimal temperature for games is 40-48ยฐC.

Alternative acceleration methods

If the standard settings donโ€™t give you enough FPS boost, try these methods (some require a ROOT or unlocked bootloader):

  • ๐Ÿ”ง Undervolting CPU (Reduced CPU voltage) via Kernel Auditor, which reduces heat and allows longer high frequencies to be kept. G35 safe reduction to 900 mV (default: 950 mV).
  • ๐Ÿ—œ๏ธ Nuclear shutdown CPU (for multi-threaded games, for example, in PUBG Mobile can disable 2 cores out of 8, leaving only productive Cortex-A53.
  • ๐Ÿ“ฅ Use of a custom core (e.g. HellCat Kernel for the purpose of MT6765). Dayet. +20% performance, but requires ROOT It can disrupt stability.
  • ๐Ÿ”„ Flip-on MIUI EU (European firmware version without Blaatware. Frees up to 500 MB of RAM.

โš ๏ธ Attention: Methods with ROOT Or custom firmware resets the warranty and can cause the device to break. Before experimenting, back up through Settings. โ†’ System system โ†’ Backup.

What is undervolting and why is it dangerous?
Undervolting is a reduction in the voltage applied to the processor without changing its frequency. Advantages: - Reducing the temperature by 5-10 ยฐ C. - Increased battery life. - Ability to hold high frequencies longer without trottling. Risks: - Unstable operation (departures, reboots) with too aggressive reduction of voltage. - In rare cases - damage to the chipset (if the voltage is lowered below the safe threshold). For the Helio G35, the safe range undervolting is up to 10% of the standard value.

7. Frequent mistakes and how to avoid them

Many Redmi 9C users make mistakes that not only don't speed up games, but also make performance worse.

  • ๐Ÿ”„ Frequently cleaning RAM manually, which kills the background processes, which causes the system to reboot them again, wasting resources.
  • ๐Ÿ“ด Use of โ€œboostersโ€ FPSยป And the Play Market, 90 percent of these apps are empty, they just load the system. GFX Tools (with caution).
  • ๐Ÿ”‹ Playing with connected charging, charging increases the heat by 10-15%. If you need to play for a long time, use a low-current power bank (1A).
  • ๐ŸŒ Mobile data game 4G. Helio G35 has a weak modem, which at high load "steals" resources from the GPU. Connect to 5 GHz Wi-Fi for stable ping.

Another common problem is the lags in shooter shooting, which is caused by the touch delay.

  1. Enable Developer Mode (click 7 times on the MIUI version in your phone settings).
  2. Go to Settings โ†’ Additional โ†’ For developers.
  3. Find the settings: Disable HW-overlays (set on-set.). GPU-Acceleration (select Forced). Minimum width (dp) (set 411 to reduce interface lags).

FAQ: Answers to Frequent Questions

Can the Redmi 9C be overclocked to 60 FPS on PUBG Mobile?
Technically, yes, but only on the minimum graphics settings (Smooth + Low) and using GFX Tools (60 FPS mode). However, a stable 60 FPS will not be achieved - there will be drawdowns of up to 30-40 FPS in combat. For a comfortable game, it is better to limit 40 FPS with Smooth + Medium settings.
Why after the crackdown GPU The game starts to slow down after 10 minutes?
This is due to trottling, which automatically reduces frequencies due to overheating. Solutions: Reduce the GPU to 600 MHz (instead of 700 MHz). Use a cooling stand. Play at ambient temperatures below 25ยฐC. If the trottling continues, return the GPU settings to factory settings.
Will PUBG Mobile be banned for using GFX Tools?
Officially, Tencent prohibits modification of graphics settings, but bans for GFX Tools are rare. Risks increase if: You use Extreme FPS (90 FPS) on weak devices; change the settings of Shadows or Anti-Aliasing to unacceptable values; Play on an account with suspicious activity (frequent device changes, cheats in the past); Recommendation: create a separate guest account for tests with GFX Tools.
How do you get it back if the game starts to get stronger after the game is set up?
Follow the steps: Reset the GPU settings in the engineering menu (#36446337##). Clear the game's cache: Settings โ†’ Apps โ†’ [Game] โ†’ Clear the cache. Turn off Game Turbo and restart the phone. If you used GFX Tools, delete it and reinstall the game. If the lags are left, reset to factory settings (but that will delete all the data!).
Should I buy a Redmi 9C for games in 2026?
Redmi 9C It is suitable only for casual games (Clash Royale, Brawl Stars) or shooters on minimal settings (PUBG Mobile at 30. FPS, COD Mobile on Low. For modern AAA-Games (Genshin Impact, Honkai: Star Rail) it is not good - even after all the optimizations will be uncomfortable lag. โ‚ฝ 2026): POCO M4 Pro (Dimensity 810, 90Hz screen). Redmi Note 11 (Snapdragon 680, better cooling). Realme Narzo 50A (Helio G88, play-optimized).