What Video card settings should I use with JPCSP and which config settings go faster?

[serio]

v0.6 1975

http://buildbot.orphis.net/jpcsp/
2099 is the latest one. might give you some speed boost or not, but will definitely give a compatibility one.

anyway, try selecting some options in config/video. use shaders, use geometry shader, enable saving GE to textures, enable dynamic shader, possibly only ge graphics.

also you could update your graphic card drivers if you didn't before. i see you're using a geforce, so the current version of them is 270.61. outdated ones might cause glitches.

i don't think zooming affects the speed much if at all, but it will screw up the way it looks in some games, with some layers zoomed in way too much or not at all.