Yeah there was a time when primal was polling for public keys a couple times/second which was HORRIBLE. I had to build the grant-all system just so I could use it. but if you didn't know extensions (especially when passing data between, user scripts, content scripts, then background scripts) is insanely slow. Like hundreds of MS slow. Even if it's all in memory. Primal was barely usable then but when they did that I couldn't use it. That was the end of my Primal days.