If you own a legal copy of PES 2014 (PSP), you can patch it. Here is how the community does it:

Visuals are everything in football games. Modders painstakingly edit texture files to include:

eFootball PES 2023 for PSP is a fan-modified version of classic Pro Evolution Soccer titles, offering updated 2022/2023 season kits, transfers, and PS5 camera views on the PPSSPP emulator. These community-updated ISO files require specific SaveData and Textures folders to be installed, which can be downloaded from sources such as Alitech. Download the files and learn the installation steps at Alitech . eFootball Pes 2023 PPSSPP Iso PSP Game Download Latest

No. Official online servers for PSP PES shut down years ago. Local ad-hoc multiplayer works fine.