Where to pve

Hey there, I just bought this game a couple of days ago and im loving it.
Even though I'm new to this game I like to think that I have some experience in the mmo genre especialy in pve (mostly played gw2 and raided in wildstar).
I'm playing in the European server "Lich" and the queue times are a bit long, (and yes I know that dps queues are longer than the tank's or healer's and that im enlisting in low level dungeons) so I did some research and found out that apparently "Lich" is a low populated server.
Finaly to the question(s)... Should I change to another Server, if yes which one would be the best for me? (note* I still didnt get heavensward expansion)
Oh and just a quick question, free companies are like guilds in another mmo's right?

When you queue through the duty finder, you are queuing with your entire data center, not just your server. Your wait time would be the same on any of the European servers. Depending on the time of day, the typical queue for a DPS will be between 10-40 minutes, with leveling dungeons being on the longer side of the wait. As you are on an European server I'd make sure you have all language options checked, as that may speed up your queues. DPS in this game make up around 60% percent of the player base, so longer queues are just kinda something you have to put up with. You might try seeking out a mentor (crown icon) and asking to be added to the novice network to see if other newbies or mentors are willing to queue with you. Otherwise I'd recommend joining a Free Company (guild) and/or a linkshell (private player run chat channels) that is newbie friendly. Good luck!

Also, whenever new content comes out, people tend to flock to the new stuff and other regular content can get a bit barren for a while. Palace of the Dead is still new enough that a bit of that effect may still be lingering. As the newness wears off, queue times elsewhere should pick up again.