RetroArch 1,8.3
no vertical sync / nov-sync for video.
audio > resampler > audio resampler = nearest
frame throttle helps boost performance with 3D games sometimes
2D games benefit rarley from it, I guess. Standard is turned off (0.0x)
settings > frame throttle > maxiumum run speed = 1.0x or 2.0
quick menu > frame skip = 1
" > enable dithering = off / on (depending on game)
" > sound reverb = off
" > sound interpolation = off
Update:
BIN files only list. increase performance dramatically by converting BIN files into PSP's .PBP format
very early impressions on most of the games / minimal playtime
almost all games have certain things in common: pre rendered video cut scenes are butchered, voices causes often huge frame dips and cause stuttering. A few games have clear voices and don't drop in frames because of it?!
3D games (BIN files)
Breath of Fire IV US = 59 FPS (drops in some cut scenes) - (so far) really playable
Pac Man World (US) = 39 FPS (frame throttle 2.0x > 59 FPS) - playable / really playable with frame throttle
Front Mission 3 US = 59 FPS really playable
Xenogears CD1 US = 59 FPS = very playable, small frame drops in 3D battle encounters
Gex 3 US = 39 ish FPS = unplayable / frame throttle 2.0x / 3.0x in game 59 FPS = playable
3D games / notable mentions / mixed results (BIN files)
Disney's Hercules (US) = playable - however butchered voices causes in game frame drops
Looney Tunes Sheep Raider (US) = 39 FPS - unplayable (not tested with frame throttle)
Tail Concerto (US) = 39 FPS and below, audio stuttering, huge drops
Mega Man Legends (US) = 30-39 FPS unplayable
Pepsi Man (JP) = 40-50 FPS playable with frame throttle. However a lackluster experience over all
Threads of Fate (US) = 30-45 FPS (ft 2.0x) somewhat playable, but not worth it
2D games - full speed / very playable (mostly 59 FPS) (BIN files)
my recommendations, early impressions so far
Adventures of Lomax (platformer)
Alunda 1 (US)
Brave Prove (JP) (english patched) (action adventure)
Cotten Original (JP) (shmup)
Castlevania Chronicle - Akumajou Dracula (JP)
Cyberbots - Full Metal Madness (JP) (fighting game)
The Adventure of Little Ralph (JP) (action, platformer)
Gear Fighter Dendoh (JP) (beat em up)
Gex 1 (US)
Harmfull Park (JP) (shmup)
Hermie Hopperhead - Scrap Panic (JP) (platformer)
Mad Stalker - Full Metal Force (JP) (beat emp up)
Mega Man 8 (US)
Panzer Bandit (JP) (beat em up)
Punky Skunk (US) (platformer)
Nekketsu Oyaku (JP) (english patched) (beat em up)
Wolf Fang (JP) (shmup)
2D games / notable mentions / mixed results (BIN files)
(needs more testing with frame throttle settings)
Valkyrie Profile (US) (partial 3D encouters) clear voices, smooth intro, however FPS drops in 3D battles & choppy town screen transitions = playable
Tales of Phantasia (JP) (english patched) stuttering voices, needs more testing, battles not tested = probably playable
Super Robot Taisen Alpha Gaiden (JP) (strategy) (english patched) heavy on voices, stuttering, frame dips = playable
Mega Man X4 (US) 39 FPS*ish (from memory) unplayable
SpongeBob SquarePants - SuperSponge (EU) (heavy on voices, stuttering, frame dips) unplayable
Tear Ring Saga (JP) (strategy) (english patched) glitched sprites
Tales of Destiney (US) slightly glitched text boxes
Rhapsody - A Musical Adventure (US) = crashes in "new game" options
GeGeGe no Kitarou - Gyakushuu! Youma Daikessen (JP) (platformer) = long in game intro, heavy on voices, heavy stuttering
Gunners Heaven (JP) (bin) = glitches, all sprites are missing, only background = unplayable
Simple Characters 2000 Series Vol.13 - Shin Kidou Senki Gundam W - The Battle (JP) = unplayable, very low FPS for a 2D only game
Community Prom (2D action adventure, RPG) - crashes / needs more testing
Sexy Parodius - unplayable
Gradius Gaiden - unplayable
Twin Bee - unplayable