yeah, there are a lot of threads on the forums about slow connection
actually it's not a connection problem but our servers' perfomance. to be precise the problem is vBulletin search index which has a lot of data already and works very slow. becuase of this database has overloaded and whole site started to work slow too (we use authorization based on forum, so...).
we have disabled search function to analyze system, and now we have some ways to fix problem. also we need some days to gradual implementing solution that we think is best in our situation.
you can use one of your favorite function - forum search - from today, but search can be disabled again if something goes wrong. anyway site will work stable as usual soon