Another cost effective solution in addition to a solid table would be incorporating vibration damping mounts. They have sandwich style mounts as well. Pick your flavor.
Search ‘vibration-damping mounts’
idk why the link wasn’t working
I had a similar issue (using a cheap rack as my table) and have found $25 in (4) mounts have really toned down some of the vibration and harmonics from the movements. Well worth the purchase.