Have you tried slowing down the feed for insided arcs? The simple method: inside arc feed = linear feed x (inside arc radius - tool radius) / inside arc radius. Then return to linear feed coming out of the arc. For finishing the equation becomes: inside arc feed = linear feed x square root ((inside arc radius - tool radius) / inside arc radius).
If you uses linear moves to simulate arcs make sure G8 is turned on and that G9 is returned for your positioning moves.
Finishing moves, may need two finish passes do to materal and tool deflections.
It all depends what is the cause and reason for the gouging.
Safety - Quality - Production.