I know that CoreXY kinematics is very complex and hard to calculate for the firmware making it better to use a 32-bit board. For some reason, I can't use any 32-bit board. What problems will occur if I use an 8-bit board like Arduino Mega with a CoreXY 3D printer?
Everything that I wrote in this question about hard kinematic calculations was referenced from this video, HyperCube 3D Printer 8-Bit Speed Wall, by Tech2c (the designer and builder of hypercube). After watching the video I doubted using an 8-bit board.