I have several blogs on my MT4.35 installation. Except for minor color changes, they're all almost identical.
On the three above, I can publish the indexes in 25-40 seconds and comments post slower than I'd like but not too, too bad. The last two are inactive but the first one isn't.
On the one below, publishing the indexes take anywhere from 1:15 to 4 minutes and comments are excruciatingly slow to publish. I've tried removing widgets, removing plugins, and removing links in the entries. Nothing seems to speed it up.
What to try next? I'm at wit's end.
Reported on Movable Type 4.3