Look up "feed forward" programming for your control, you may be able to soften or stiffen drive responses to reduce chatter.I'm running parts that weigh thousands of pounds and they stick out so far I struggle to control chatter the only solution I've found is to stand there for 30 min and go from 80-150 spindle speed back and forth.
I see okumas and haas have ssv or hssc options built in but I'm not as familiar with mazak. I'm running a mazak Slant turn 60N. And all the programs I'm given are fanuc controls.
I'm not sure how to adjust for that or if I even can. Would need step by step if possible. If I have to adjust variables or parameters or something.