Nicholas I’ve had pretty good success using this: https://www.harborfreight.com/router-speed-control-43060.html
I’m currently using it with a Ridged shop vac and a count down timer. Turned all the way down makes a HUGE difference with the sound. It does however reduce the suction, but its still works great if you have the dust shoe lowered to the surface of the material. After a 3 hour carve, I can’t tell the diff between full power and reduced power as far as dust collection goes. I’m hoping it will also help my shop vac last longer.