Wow PSP, I've not heard that program name in years. It used to be a favourite giveaway with computer magazines.

I've now gone down the Affinity route but tbh don't actually use Affinity Photo that much (no particular need). I can confirm however as handrawn mentioned, to get the most out of it, there is a learning curve (as PSP will also have no doubt). A good thing though is there's a ton of tutorials available, both official and by experienced users.

If you are serious about photo editing AND organising collections of photos, ON1 Photo RAW is a great (non-subscription) alternative to Adobe Lightroom. I think it works out around $20 more than PSP.