FPS progressively dropping over time

Hi! I wanted to ask if one of you had this issue: When playing over time, my FPS drop progressively. This happens especially when travelling with obelisks.
I start at 110fps, an hour later I’m at 50-60 and if I keep playing it falls to 40. My only base isn’t anything crazy (maybe 300 fondations). I’ve tested it with admin right, teleporting to some areas and the lag increases gradually to the point where I need to restart my game.

When I restart the game, it’s back to 110fps

It looks like some kind of memory leak to me, or something in the cache that builds up over time