I've played a little over 10 hours of this game so far and you'll need to mess with the graphic settings in game if you are looking to have the game run in the 47-60+ fps range.

The below are the settings I use when playing docked and undocked with the Steam Deck.

Window Mode: Windowed Fullscreen Vsync: Off Upscaler: FidelityFX FSR 2.2 Upscaling Quality: Quality or Balanced Maximum Resolution: Low or Medium

I would keep everything else at Low or Medium.

You can tinker with as you see fit. I'm also running cryo utilities.

Online works fine. The game is in Early Access so everything is subject to change I'm assuming.