This is the easiest way of correcting lag on PES 20xx PC Version:
Step 1: Launch The Pes20xx.exe, as the game opens, minimize the window by pressing “start+alt” keys
Step 2: Right click on your taskbar, then open “task manager” then go to “Processes”
Step 3: Click on “Show process from all users”
Step 4: Locate Pes20xx.exe
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Step 5: Right-Click on it then “Set Priority” Select “High Priority” then exit and Enjoy the smoothness of the game!