Rendering the vector fonts into cached bitmaps is complex. Rendering the final buffer by blitting those bitmaps isn't very. Smooth scrolling is inherently boun

Rendering the vector fonts into cached bitmaps is complex. Rendering the final buffer by blitting those bitmaps isn't very. Smooth scrolling is inherently bounded by the vsync rate of the display. As long as you can render the terminal's pixel buffer with new characters and send it to front for the next flip, all within some portion of the time you have between frames, it's as smooth as it can get. Missing a frame will cause stutter, and make it non-smooth. Given the fact that terminal doesn't necessarily need to render if there are no changes, using GPU seems like an overkill for regular use.