We have been averaging 25 players at a time lately and yes it is the same world as last you played. So yes it's minecraft and yes there is lagg to be expected. I have been on all weekend and with that many players on at the same time not much can be done. As far as timeouts go there can be several issues that cause that. Most of the time it is a high ping rate caused by the route the isp uses to get to a sever. Try running a traceroute to see if there are any issues along the way. My connection isn't the best, it's comcast residential because that is all that is offered in my area and i only timed out twice this weekend