I've heard the Primal experience on iOS isn't great. I'm noticing a trend.
Discussion
I was actually wondering if your private relay would fix this but no matter what I try I can’t get the image cache on Primal to work. Stopped suddenly yesterday. That’s about the normal experience for Primal on iOS. On the desktop, Primal stopped accepting signer extensions in last few days.
I don't like that cache system they have. It basically forces everyone to receive from the aggregation cache, and write to the user's defined servers. You're not the only one I've heard complaining about that cache. And there's nothing you can do to disable it, and just receive from your relays. That's why using different relays makes no difference because your read requests are automatically being handled by the cache server. Your relays don't even come into play unless it's a write request.