Hi @GIban671,
It’s quite a normal phase to go through, we’ve all been there and to be honest it seems to me that most of us never really master the feeds and speeds completely, there is no universal answer, we just branch off to our preferred approach for it, be it experimental, theoretical, or a mix of both.
I have tried to document my view on the F&S topic here, in case you want to give that a read:
https://shapeokoenthusiasts.gitbook.io/shapeoko-cnc-a-to-z/feeds-and-speeds-basics
This is by no means a definitive answer, but it may help you get a grasp of the various parameters that are involved in getting a “good” cut, how they interact, and how to determine suitable values.
It this is too much theory for you, feeds and speeds values from @wmoy’s MaterialMonday videos are your best bet, until they get integrated in CC by default.