slow no$gba

when i run any game it slow why?

What are your computer specs?Operating System
System RAM
Video Card
ProcessorWhat version of No$GBA are you running? 2.5, 2.6, 2.6a, No$Zoomer addon?

Intel Celeron 1.80 GHZ 1 gb ram ati radeon X1650
i run 2.6a version

Go to Options -> Emulation Setup (or press F11).check the Emulation Speed settings, and the 3D Renderer (should stick it to Nocash for now).
Emulation speed, try different settings, Realtime Auto (default) may be too much for your system. Try the Unlimited MHz modes.

i get this setting what you write but still slow , it reach 50% only ..

Computer is probably not powerful enough to go any better. You could try using the No$Zoomer addon to see if it helps.
You can find a link to No$zoomer here: http://forum.romulation.net/index.php?topic=1462.0