Annoying lag after installing on Ubuntu 20.04

[Quax]

On Ubuntu 18.04 I have been running the experimental Factorio version without any problems. After upgrading to Ubuntu 20.04 (fresh install) and changing the graphic card (from a Nvidia 1080 to a Nvidia GTX 1660 Super), I'm experiencing significant lags. My FPS is at around 6 .. 7 on average, with peaks up to 10 and lows down to 5.

System specs:

• 8 GB RAM
  Intel® Core™ i5-3450 CPU @ 3.10GHz × 4

Screenshot:


Mods folder:
https://www.dropbox.com/s/cyvm0jd9ebxzt45/mods.zip?dl=0

Save file:
https://www.dropbox.com/s/cd2e3nien4apsnk/1.1.zip?dl=0

Log file:
https://www.dropbox.com/s/5gqnt2bxwpu03 ... t.log?dl=0

[posila]

You don't have graphics driver installed (or OpenGL is somehow broken/misconfigured and it's running the game in software renderer)