Sometimes, very rarely and seemingly at completely random, when I start up ESO, my whole computer slows down to a crawl. So slow that even my mouse pointer lags like hell and it becomes basically impossible to do anything. Fastest way to get rid of it is to just force shut down the whole PC and restart, but it can also go away by force quitting ESO through task manager (though doing that will take ages due to the slowness). This all happens before ESO even gets to the login screen. This only ever happens with ESO, all other games and programs work fine. This has been happening for many months now but so far I've ignored it as the game still starts up without problems 99% of the time.