I think this particular issue is orthogonal to how font rendering is done. If I recall correctly the Multiline_Textarea tries to render the entire text at once, and this is what's causing the slowdown. If we instead did line breaks manually and rendered the text line by line, the problem would go away.
I think this particular issue is orthogonal to how font rendering is done. If I recall correctly the Multiline_Textarea tries to render the entire text at once, and this is what's causing the slowdown. If we instead did line breaks manually and rendered the text line by line, the problem would go away.