In big commits like https://gerrit.wikimedia.org/r/#/c/25736/ lots of time is wasted because navigating to next or previous file gets slower as you do it more. It's fast again if you go up to the file list and click diff on some file.
Version: unspecified
Severity: normal
See Also:
http://code.google.com/p/gerrit/issues/detail?id=1370
I remember seeing something about this upstream (either a commit or a bug). Will hunt it down.
This was resolved upstream and has long since been deployed. I haven't seen any complaints about it in some time--does it seem to be better for you Niklas?
It has been much faster for a while. I'm unable to say at the moment whether the problem has completely disappeared though.