This happens to me all the time at Merge sites. If I only have that site open, which is almost never, it runs ok. But if trying to do too many other things, it gets very slow and I end up sitting out.
As Cowboy said, I just assume it is because my computer is very nearly a museum piece!
I used to play at Carbon regularly because I enjoyed all the different FRs. Also, I played at all the CC FRs there as well, with hardly any problems. But now, especially after they installed the new upgrades, I get sat out regularly----and also I get notices saying....'You're running slowly' and are going to get disconected! Now, this all just started happening AFTER the up-grades. Think there's a connection? AND, I TOO have an $80 computor w/Windows ME and a celeron processer----It's prolly just TOOOO old, like me!
Make friends with the trash man. My friend is a trash guy, people throw out better computers (littered with viruses) all the time. Or big companies write off their old comps and usually give them away, kissing up to some people at banks etc. not a bad idea.