How do we feel about pistol optics?

I have the vortex viper it came with. Ok enough, but think at least a bigger window would be nice. I’ve been looking at some rifle optics like the Holosun SCRS but also seeing some folks use pistol optics; the most intriguing to me is the Holosun 507 COMP. I also like the idea that optic is possibly useful for other platforms besides the PS90 if I want to switch it up later.

Or anyone have a better recommendation? I’m a ‘no’ on the ringsight because (to me at least) it’s expensive, only works on this one rifle, and seems to have some downsides like narrow field of view.