It appears the cache rebuilds itself every time you change something unrelated in the main options. Is this intended? Rebuilding the whole cache can take a lot of time if you have a large library.
Yes please, this needs to be fixed. I search for Sonic and i get unrelated results like ChuChu Rocket and Poyo Pop Fever on GBA, Micro Machines on the DS and a bunch of 3DO games.
It's not very useful in it's current state.