You have built a sturdy chopper!
Still, if you attach a twin anvil, with the edges inward toward the rotating blade, the “grip” would be more smooth and peaceful.
Twins starting from the upper right corner, smooth bending (curwing) to the bottom leg.
Curving takes away the “hard hit”, and the handling feels smoother.
What ever smoothing in the cut, the longer it feels good… it can also promote clear, threadless bits.
But avoid the exact same curvature as the rotating blade has! In that case it will start “hammering” and can “bite itself”.
The “crossing point” should wander slowly upward during a cut.
Starting at the bottom and smoothly wander up to the right upper corner.
That way the anvil-pair will contribute to the active cutting.
This really needs pre-modelling!