As above, Anyone else have this issue or a way to fix it?
Its rather irritating the ball/trail seems to keep phaasing out on certain parts, I think maybe a clipping issue?

Either way only happens on Neo mode regardless of resolution of enhanced FX status.

If you have the Crossplay option enabled, try turning it off.
It looks like it helped me.
This optimization problem, in principle, exists regardless of the selected game mode.
But then, in the case of the Eternal Battle, there will simply be no one to play with. At least at the beginning of this month (June), I don’t see anyone other than myself on the GOG platform in the leaderboard.