I may be a newer member but I can help with this part! There’s a whole lot of going by vibes when it comes to feeds and speeds, but there doesn’t need to be… we can use math 
DOC, feed rate (feeds), spindle rpm (speeds), and number of flutes equate to a chip size. You need to hit the ideal chip size for your material to avoid dulling your bit prematurely. Coincidentally, finding a good chip size also means you’ll have a nice cutting experience!
Check out my thread about adding this as a cheat sheet in Estlcam: Useful 'comment' section for tools even if you don’t use Estlcam, I’ve linked info there for calculating everything and given some examples of what I’ve done.
The biggest takeaway is to use single flutes, and that Dial 1 on the Makita (10k rpm) is all you really need. Also I fully recommend following Ryan’s philosophy of just doing it a little slower to ensure the project comes out well on the first try. You might spend hours dialing in the most ideal feeds and DOC, or you could just do like 6 mm DOC, 15 mm/s, 10k RPM (on a 1/8 single flute in plywood and MDF) on all of your projects and actually save time because it’ll all “just work” :). You CAN cut deeper, but then chip evacuation becomes impossible and your bit will cook as it recuts all the shavings. You CAN cut faster, but adding 5-10 mm/s to most jobs only saves a few minutes and opens you up to more risk.
Now if you’re going to manufacture and bulk produce stuff, you’d better try and eek out all the efficiency you can, but for making cool stuff for yourself and others? “Low and slow will work on the first go” can’t be beaten! …then again, I’m only confident in all of the aforementioned because of all the time I’ve spent experimenting, so you do you