That's a lot of informations to read here... hope you're ready gameblabla !
I haved tested all of my pce games, the fps is perfect, 60 fps full speed on all games i've tested but as previous people mentioned there are some massive sound, music lags / problems :
Aero Blaster : 60 FPS but sound / music lags, you can hear it on first level when the 3 green robots apears
Batman : 60 FPS but lot of sound / music lags during the whole game, even on the intro / menu
Blazing lasers 60 FPS but some sound / music lags during the intro / menu of the game
Bomberman 94 : 60 FPS but the music / sound spit and crackle from time to time (like every 20 secs), to hear this prob, press start until bomberman is in the " temple " kind of cheese place and let the music run
Dead Moon : 60 FPS but sound / music lags during the intro / menu screen. In the game its ok
Detana TwinBee : 60 FPS but MASSIVE sound / music lags during the intro / menu screen / in the game
Galaga 88 : 60 FPS but sounds / music lags during the game
Ginga Fukei Densetsu Sapphire : Doesnt work ! the game launch but then it shows a naked girl with a japanese writing......................
Gradius : 60 FPS but massive sound / music lags
Image Fight : 60 FPS sound / music lags during the intro, during the game it seems ok but i havent played for a long time
Image Fight II (cd) : 60 FPS but some spits and crackles for the music during the game (you can hear that easily by pressing start (pause) during the game and just hear the music...)
Loom : 60 FPS but sounds / music lags
Lords of Thunder : 60 FPS but sounds / music lags
Ninja Spirit : 60 FPS but some spits / crackles on music / sound
R-Type Part II : 60 FPS but sound / music lags
Summer Carnival 92 : 60 FPS but sound / music lag probs
Valkyrie no Densetsu : 60 FPS but sound / music lag probs
These are only the games that have some sound / music lags, of course i've played other games that dont have any problems at all and are just perfect in terms of fps, sound & music like Devil Crash, Fantasy Star Soldier, Coton, Final Match Tennis, etc...
Also an important thing to notice is that on many games when you press pause you hear a noise in the background which doesnt happen on Mednafen or other emulators, exemple : Ninja Spirit or Dead Moon.
Another thing to mention when lauching cd games, since you cannot see the extension, if you launch the iso instead of the cue, it will show a black screen and the gcw is stucked, the only way to escape is pressing Hold up + Select, it would be nice to be able to press start+select to exit and go back to the list of the roms too or an automatic go back to the rom list like on Mednafen would be nice.
Now the other problem i've mentioned in the Mednafen post and that i think is important enough to mention is about the colors / contrast / saturation. I dont know if Mednafen shows the correct c/c/s or if its temper that is right, but the difference is here and to me, it seems that Temper is fading the colors a little bit, make them look desaturated, while Mednafen is showing bright and crisp colors, much more better looking. here are a few screenshots for some comparaisons :
