The "generated" block is fast, because it doesn't use cairo_set_source_surface(), which is slow with X.
So this is something to think about. There might be some workarounds or a different way to accelerate the drawing of the image blocks, which can be from .xpm, .svg, .png, .etc files.
This is some technical info. Ideally the app should work fine in very slow machines.
Currently there are 2 block types (see Options dialog): 1) image blocks (which are stored in cairo surfaces) 2) "generated" blocks
The "image" block used to be faster with gdk_draw, using GdkPixmap, but now using only cairo it's slower. I notice visual glitches.
The reason for this is
cairo_set_source_surface()https://stackoverflow.com/questions/15773965/how-to-fast-redrawing-an-image-buffer
The "generated" block is fast, because it doesn't use
cairo_set_source_surface(), which is slow with X.So this is something to think about. There might be some workarounds or a different way to accelerate the drawing of the image blocks, which can be from .xpm, .svg, .png, .etc files.