Can I copy a sprite to the background buffer instead of using LOADBMP

[spicypixel]

If you draw your own background image you can disable clearing the backbuffer with black by using CLEARSCREEN -1. Should save some time.

This is really useful, If I use CLEARSCREEN -1 and PV's to blit my background I get an increase from 376fps to 428fps on my PC compared to when I used LOADBMP with a pre-scaled and saved file. Guess this makes LOADBMP obsolete for me, although a good topic for other to read and determine what to use for themselves.