Multithreading

[LunaMoo]

Well multithreading being better in anything is misconception of modern times. Most people think it will use more cores hence being faster, however in reality not everything is worth dividing into threads because lots of work has to be synchronized and that is not free. In cases where synchronization has to be very tight(like in most emulators), it can get soo costly that you divide one light thread into multiply heavier ones - which is useless. The overhead will also differ from cpu architecture, ironically multithreading on slowest cpu's will bring the worst results and often it's only beneficial on desktops with high end intel cpu's that doesn't even need it(from ppsspp perspective). It's usually not worth using on mobiles unless in some game it really means a difference between playable and not, because the load will always be bigger with multithreading than without which will drain your battery faster.

I would add that multithreading option in ppsspp causes bugs in many games. Mobile users as I recall were quarreling against fixing it since fixes to it made it even slower and since then it was somewhat forgotten. So yeah I wouldn't recommend just blindly activating it for everything. Experimental options in general should be treated like hacks - it's there, you are free to test it, it can improve, but might as well degrade your experience and the results will really differ between devices and games.