A server is always going to get lag, either it's a lag spike or just pure lag in general, I don't think there's anything that can be done about that. Although I do agree with you, maybe the staff members or administrators could come up with something to remove to reduce the lag on the server. Since this is about prison, I would think you would want lag to stop on Prison primarily. I've been in prison and it's dropped my fps but usually never gave me a lag spike. But as I said before, maybe he administrators/staff members could come up with an idea to remove something from the server to reduce the lag spikes.
I usually just get the drop of fps other than the lag spikes but I do believe something can be removed to reduce the lag spikes.