These typically include a modified DpFileList.bin and .cpk files that remove lag-heavy assets like high-res textures or pitch patterns.
Use a "Crowd Disabler" tool (often found in optimization RAR packs) to remove stadium fans, which is a major cause of lag on weak hardware. These typically include a modified DpFileList
Open the Settings.exe file in your PES 2017 installation folder. Set the resolution to 1280x720 (720p) or lower and change the Picture Quality to Low or Medium . These typically include a modified DpFileList