Nothing wrong with your feed IF getting the cut quality you need AND the bit is room temp(or Slightly warmer) at the end of the cut.
BUT ignoring the Chip Charts, and starting slow and shallow, and watching cut quality and bit temp and getting even Small chips(look CLOSE and make sure it's not saw dust)
is where you want to start. Chip Charts aren't really as important for 80% of our machines, as they're just not rigid enough.
FEEL the machine when it's cutting at different feeds and RPM's doing Air Cuts(or even just driving it around)! IF you have vibration at certain speeds and RPM's ...avoid them.
Vibration DOES transfer to the cut.
THEN try cutting materials...It REALLY doesn't take long to find a low feed/low rpm cut with shallow passes and inspecting cut quality to get a FEEL for the Sweet Spot for YOUR machine!
THEN you can increase feed/speed proportionally Together, to find the bit and materials Sweet Spot. I like using Sugar Maple for testing as it's mid range for my work for hardness.
Depth of pass can usually be done with a Fluting test cut and inspecting cut....maybe start all cuts at 1/2Diameter of the bit passes? Pretty much won't break a bit and then increase.
When cut quality gets worse..you know you've gone to far trying to max everything out....Back off about 10%, and you'll be close to Sweet Spot.
DON'T forget that almost ALL cut quality for finished product, WILL be improved by a very small Finish pass so toolpath accordingly.
If you're doing cabinet sheets or foam...I apologize for my Hardwood thoughts
For Sugar Maple test cuts with a never used bit, I find (IPS) 1-1.5(XYFeed), .5(Plunge rate), and about 15-16K at 1/2 Diameter of bit is a good starting point...THEN move up or down.
HOT/SCREAMING bits increase feed/lower RPM.....LOUSY edge quality and tear out....reduse feed or increase RPM.
Can't stress enough how important it is to find the Smooth Spots on your machine cutting Nothing! IF it's a vibration air cut...really doesn't get better if going for top quality cuts.
THIS is not as good as it once was for Newbies...BUT found it VERY useful!!https://www.precisebits.com/tutorials/calibrating_feeds_n_speeds.htm
I Tweak All my bits before I use on an actual one-of project in Maple....then go at it conservatively.
Every body, every machine, every bit, every material is different.
Find your Sweet Spot:)
HOPE I didn't confuse the Heck out of you.