Short story: if you survive the first few minutes, everything will be smooth again.
Full story: on your first join you don’t have caches of the new HWS universe. If you press straight at the beginning M for example you see a white globe. That means in the background the game is downloading the cache of the planet.
That not only drops your FPS but also pushes your RAM.
Reason for that is that we are using the new “good performance” splatmaps. The cake is a lie. Other servers just tried to update their servers as fast as possible without bothering the new content Alpha 7 brought in, so they are using the “good old” procedural planets.
For the future we will do benchmarks with Eleon or just get rid of these planets for starters at least.