Hi there !
First of all, congratulations for this must-have emulator you've given us (well, not exactly given but you know what I mean ^^). Definitely one of my favourite Android apps ! I used to play with psx4droid but FPSE got me with its beautiful HD rendering and filtered textures.
I've been playing around with most settings, in order to get my favourite PSX games working, and I'm very impressed by the power of FPSE on my Samsung GS3. It runs almost flawlessly ! However... (you knew that time would come, didn't you xD )... While trying to get rid of some annoying hiccups in Vagrant Story, I wanted to try the Draw Thread Priority option - and couldn't !? Whenever I enter this setting, I can select a different value but when I close this setting, two things happen : 1) FPSE applies default config without me ever touching that line ; 2) the Draw Thread Priority setting remains unchanged.
Currently I'm having the same problem with the Frame Limit setting. If I try and select another value than "auto", as soon as I close this setting : 1) a totally unrelated menu option is activated as if I touched it (here it's "choose save states folder") ; and 2) my new Frame Limit setting isn't saved, it's still on "auto".
I tried backing up all config files, then access the backups with a text editor, modify the .ini config files and reinject them in FPSE with "restore all files", but it didn't seem to work ; the problem is I don't know which lines in the .ini actually match the settings I'm trying to change !
Well, that's about it. I'm still very impressed by FPSE for Android, and eager to see another update ! Keep up the good work.