Can QB64 use the gpu?

I think the reason that professional paint apps are so fast is that they can take advantage of the gpu. Is there any way to allow QB64 to use the GPU? On my computer, QB64 seems to use just one cpu core and I think this might be the reason for the slow graphical effects.

nVidia uses an antialiasing algorithm call FXAA. It consumes no additional memory and it is supposed to be 60% faster than other antialiasing methods.. Do you know which algorithm they use?

Also, How should I compare the pixel to its adjacent pixels? Right now I am comparing the red, green, and blue values of a pixel to the red, green and blue values of each of its adjacent pixels. So i end up having three statements to compare 2 pixels with each other. Is there a better way to do this? Can I use the value provided by the POINT function directly instead of extracting the RGB values from it?