Has noticeable distortion - Swampfox Justice II 1x30mm Reflex Sight

I bought this for steel challenge use. Was hoping I could replace my old C-more slide ride with something more modern that doesn't eat batteries. I got it in green, it seems bright enough, I like the shake awake and the buttons. Everything is great except.. compared to that old c-more, this thing causes double-vision. Supposedly it's part of the lens. But it's enough where I am not confident at the moment I am about to pull the trigger. You can see it easily with vertical lines, and the target in the window seems to drop a little compared to my left eye. The C-more never did that.

For the price I may run it on a PCC but I can't use it for my rimfire rifle, maybe I can try it on the pistol. For indoor ranges it's fine. For competition I would get something distortion free.