90% percent of people here is what, like 15? (considering multiple posts). how many people race lfs on a daily basis? like 1000? I wouldn't call this thread representative
also most of the posts were telling about several applications running in the background, even downloading stg in the background, which I find ridiculous. If you want to play online, close everything except your firewall, everything takes up a little cpu time, a little bandwidth, whatever. you are also messing up other people's races, who cared enough to shut down unnecessary applications.
the only things running besides lfs for me are a firewall and the antivirus software, which has autoscan turned off of course
the only thing bothering me is like mentioned above, when someone is connecting you cannot enter/exit pits, which is annoying as it is usually associated with a lag as well and takes like 5-10 seconds. otherwise LFS's online play is flawless for me.
also, turn on compressed skins, might help reduce stutters.