Just use GrapheneOS which is way way faster and better experience.

My Android phone was like what you say, but iPad is very fast.

I understand that this is not the main point of you post, but 10+ secs to open the browser hints that the phone has some problem or is low specs; and I agree that "low" is relative. To put a measure with a Pixel 6a I unlock and open the browser (Bromite) in under 1-2 seconds, it feels immediate.

Anyway "slow tech" can be a good and healty experience.

Not sure what phone you’re using. Mines nothing special and it takes maybe 3-5 seconds to get from black Lock Screen to open web page. Including password typing. The difference from 3-5 is only if I do it quickly vs normally.

If there were no lock pass it’d probably be 2-3s

At an early age I realized that computers are overall more of a productivity drain than they are a performance enhancer. This is the promise of things like chromeos, tablets and even Remarkable, but they offer their own distractions. Even worrying about the damn battery charge or WiFi connection is enough to kill your focus. For most creative endeavors, a pencil and paper or a whiteboard and marker has no alternative.

Buy a better phone

Please, some ⚡️ for fiatjaf so he can buy a new phone! 😂

Just kidding. I got your point. Although I think most Apple products do this quite well. Even a MacBook or iMac is instant on, if you put it out of sleep. And in sleep mode these devices do not use much energy.

Devs should always use their apps on old hardware, too many just use the latest and ignore the majority of their users

That’s Android, unfortunately. iPhone just now took measurably less than 3 seconds to open browser, and it’s an older slower one.

you need to get a better phone

Boot-up horror 😱

This is exactly why I hold a laptop in my cargo pants and boot up my desktop whenever I need to get things done quickly at the store.

Nothing will ever beat the experience of using your own pc, mouse, keyboard. Phones and touchscreens are crap.