For PES 2014 specifically, many players eventually migrated to using File Explorer or DynaFiles tools as the Fox Engine became better understood by the community, though Kitserver remained the gold standard for easy kit management.
While the original requirements were lower, modern modded versions often perform better with 8 GB+ RAM . If you'd like, I can help you: Find installation guides for specific PES versions. download kitserver 14 exe manager upd
Kitserver 14 is original work by juce (for PES 2014). This post provides community tools to manage the EXE version and update the installation. For PES 2014 specifically, many players eventually migrated
Kitserver is attached, but the file paths inside the configuration files do not match your directory structure. For PES 2014 specifically