How do you make it work faster?

I tried NO$GBA with Castlevania Dawn of Sorrow and it is working. I followed the options here: https://www.romulation.org/forum/index.php/topic,1686.0.html to make it work. Then i loaded it, but it's slow (10%). My computer has 1022 Mb of ram. Do I need anything else to make it faster. I modified the speeds, but it was all the same. Any suggestions? I tried other emulators, but it wouldn't work. I tried NDeSmuME and ideas and it both wouldn't work.

I dont think so, DS emu is still at early stages and can't run a lot of games properly.

Thanks.