Do you have a wall that goes to the floor under the table top? If so, the best modification ever is to install a Dream Dinette for your table top.
I put one into a previous camper by using my studfinder and mounting a plate on the wall for the slide to go up and down on.
But, single post tables are notorious for wobbling.
Mike
2012 Winnebago Impulse Silver 26QP
2005 16.6 Double Eagle
2018 Jeep Wrangler JK
previously Snowbird Campers,
Triple E Motorhome and Fifth Wheel