Hi psychonic. Do you remember this thread?
https://bugs.alliedmods.net/show_bug.cgi?id=6350
Here you are - video with metamod(or d2fixups) issue.
http://youtu.be/WRBCkAGxpW4
I want to repeat - there are NO ANY LAGS in game started without METAMOD and D2FIXUPS. And there are NO ANY LAGS in game started with OLD versions of metamod and d2fixups.
Added: There are lags, when player connected to a game. And there are no lags in a game without any players.