Has anyone else experienced the slowness the author described with Vim? I think it's possible he may be experiencing slow terminal update time (the OS X termina

Has anyone else experienced the slowness the author described with Vim? I think it's possible he may be experiencing slow terminal update time (the OS X terminal is really slow in the scenario he described) instead of Vim being the culprit. MacVim, for example, doesn't have this problem, in my experience.