Ubuntu Cursor Generation Not Happening or Very Slow

I bought the pro subscription a couple of days ago.
I have a Windows and an Ubuntu 22.04 machine. On the windows machine everything works perfectly fine. Once I switch to the Ubuntu machine hitting ctrl+k or ctrl+L opens up the corresponding chat interface. However, whenever I want to generate something it either works (around 10% of the cases but takes around a minute until an answer comes back) or it is loading even longer and I have to cancel it. This behavior occurs for all models gpt3.5 and gpt4.

I’m definitely logged in into my pro account because my model usage counter goes up.