Just remember to adjust your PPSSPP emulator settings (enable I/O on thread, set CPU to 333MHz, and use Vulkan backend) and you will be lifting the UEFA Champions League trophy in no time.
Before we delve into the technicalities of the PPSSPP emulator and compression, we must ask: why PES 13? Why not the newer eFootball or PES 2017? pes 13 ppsspp highly compressed