v18.0 alpha
All clients will take a performance hit the more bots there are on a server. It is very noticeable with even a small amount of bots (tested with 4 on a server with 10ish real players) on a heavy map like skyline. The issue is still present even if the bots aren't being rendered. It's most prevelant when looking in the direction of the bots (regardless of where you are in the map)