Rasterizer

What determines the percent of processing the rasterizer is taking up?
The game I am working on is slow, and it says the rasterizer is taking up a LOT of processing power.
thanks!

the graphics card “determines the percent of processing the rasterizer is taking up”

and if you are using a software renderer(rasterizer) then the rasterizer would take huge amounts of processor time.

what is your graphics card?