Matt Price <mopto...@gmail.com> writes: > Yes, it definitely seems to be related tofile size, which makes me think > that some kind of buffer parsing is the cause of the problem.
Parsing would show up in the profiler report in such scenario. It is not the case though. The problem might be invisible text (it would cause redisplay become slow), but 15k lines is relatively small - it should not cause redisplay issues according to my experience. Just to be sure, I would try to check performance in a completely unfolded buffer. Best, Ihor
