this has been reported by someone on the dcemulation boards as well
i think the advice that was given was to burn slower and use either nero 5 or discjuggler personally I would just get the trial discjuggler and use it. as far as speed ups turn off sound and transparencies where possible and don't turn off optimizations and turn off mode 7. use a rom list generator make sure to back up your roms before hand because I know that provlist totally renames all your roms. as for the speedometer it's your tv trimming off the edges of the screen. I wish that the nesterdc to resize the the screen caught on a little more to take in account older or more concave (convex?) screens the speedometer does help the user to understand what options to leave on or off. oh yeah dsnes isn't full speed. never has been. but you should be able to get blazing fast in game speed on nba jams on other graphically limited games(excluding starfox) but without sound I know that chrono trigger hovers around 92% except in battle when it can get downright horrible (in the 60~77% range) hopefully if people stay off the authors' backs about it they will continue to update this wonderfull emu. and if you have anymore cdr's to spare check out super famicast it isn't full speed but hey, what else you got to do? also if you want to get involved see if you can get super famicast to play and of the BS snes titles.