Umm......This discussion are my first not ask questions,just my experience.
Before optimize,you need a Computer with Putty installed,and backup your PSP game savedata.
All commands are execute on Putty,if you not know how to use it,ask Google or Bing.
When you are logined,just copy commands and pasted on Putty for execute.
OK,Let's crash the system logs.
rm -rf /recalbox/share/system/logs
ln -s /var/log /recalbox/share/system/logs
When commands executed,system logs crashed after poweroff.
This is not a required choose.
On this commands,you can crash PSP and PS2 logs.
Move PSP savedata location on /recalbox/share/saves/psp (just like other games).
Support for Cheats (You need ini files).
Support for Downloadable Content (Like God Eather)
You must backup PPSSPP_STATE and SAVEDATA on /recalbox/share/system/configs/ppsspp/PSP/
rm -rf /recalbox/share/system/configs/ppsspp/PSP/PPSSPP_STATE
rm -rf /recalbox/share/system/configs/ppsspp/PSP/SAVEDATA
rm -rf /recalbox/share/system/configs/PCSX2/logs
rm -rf /recalbox/share/system/configs/ppsspp/PSP/SYSTEM/CACHE
ln -s /recalbox/share/saves/psp/PPSSPP_STATE /recalbox/share/system/configs/ppsspp/PSP/PPSSPP_STATE
ln -s /recalbox/share/saves/psp/SAVEDATA /recalbox/share/system/configs/ppsspp/PSP/SAVEDATA
ln -s /tmp/es_log.txt /recalbox/share/system/.emulationstation/es_log.txt
ln -s /tmp /recalbox/share/system/configs/PCSX2/logs
ln -s /tmp /recalbox/share/system/configs/ppsspp/PSP/SYSTEM/CACHE
ln -s /recalbox/share/saves/psp/DLC /recalbox/share/system/configs/ppsspp/PSP/GAME
ln -s /recalbox/share/saves/psp/Cheats /recalbox/share/system/configs/ppsspp/PSP/Cheats
After executed,copy PPSSPP_STATE and SAVEDATA on /recalbox/share/saves/psp/
If you have DLC,put folder on /recalbox/share/saves/psp/DLC
Some games need update to running,put it to DLC too.(like 俺に働けって言われても 乙 Chinese version)
If you want to use Cheats,put file on /recalbox/share/saves/psp/Cheats
File name like "ULJS00032.ini"(this files support for 英雄伝说V「海の槛歌」)
Cheats support for cmf files.(maybe need to rename)