It's not that they are slow. When I pay online, I need to confirm the payment through my bank app.
When I switch to it, the browser or shop app closes and I cannot complete the transaction.
I did upgrade a few weeks ago because the iPhone 15 cameras are amazing and I care a lot about that but I honestly had zero performance reasons to upgrade. I’ve never had an issue with a 5-6 year old phone and I always keep my old phone as a backup specifically for banking.
Somehow, I thought 4+2 GiB of ram would suffice.
When I think about my atari 1040ST and what it could do with a single core running at a few Mhz and a few hundred kilobytes of RAM, it makes me realise how wrong we've gone with smartphones.
(before someone mentions it, I know that my atari didn't have wifi, couldn't play full HD videos, etc, and that it was harder to develop software for it, but still, something's off IMHO)