Since the release of Tencent of PUBG on the mobile version, everyone has stuck to his or her mobile screen, from one chicken dinner to another. While PUBG on PC is infamous for its poor performance, the mobile version is rather optimized and runs on almost all recent devices. If you're using an older device, you likely face occasional stuttering and frame dips when playing PUBG Mobile. These frame drops may not be a big deal in casual games but in PUBG games such dips can cause death. The good news is that you can now setup PUBG on low RAM devices by editing the config file (where you don't have a rooted device) or install the GFTX Tool app(rooted devices only)
Repeat the process several times to change all the settings to the least to get the best performance on a low-end device.
The second method is for rooted devices and is simpler and on point. GFX Tool app is used in this case, which can be downloaded from the link. Once downloaded follow the below steps on your device;
You can use the individual setting in case you dislike the aforementioned settings. Here is a quick guide:
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