yep, and you don't have to worry about all the things when it comes to respawning players, or checks for capture points as an example. there is also less items lying around.
one of the CB servers i played on a while back made it so every bot switched to their fists before they died, which cut down on the hundreds of items being spawned. was a nice way to save performance, with only the downside of you cant pick any weapons up.