Yes, aware of the issue.
As it is now, the site runs on 4 web servers, 1 MySQL server, 1 image server and 1 ad sever. (7 servers in all.) We have a NEW Dell Dual Quad Core server (8 processors in all) coming in with 8 gigs of RAM for the MySQL server for faster database access and thus less bottlenecking. Also looking to add in a load balancer for the 4 web servers.
So in a nutshell, we are working on it. (Growing pains when you see 6 million unique visitors a month.) Though December and January are the most busy months.
As far as donations...just become an AVS Club member to help support the site. Not needed, but it is a way if you so choose.