CPU load, VWait

Try something like this

Btw this part defines your Fps
FrameMs = 1000 / 60
This would be 60 frames a sec

Graphics 320,240,32,2

FrameMs = 1000 / 60

SetBuffer BackBuffer()
Repeat
	ClsColor MilliSecs(),0,0
	Cls
	start_time = MilliSecs()
	;do your stuff here
	Flip
	end_time   = MilliSecs()
	
	delay_time = FrameMs - (end_time - start_time)
	If delay_time > 0 Delay delay_time
Forever