Nah, my device is not high end, but it ships with a SD 865, and 6 GB of RAM.
Have you used Chrome recently? It is just a better experience with Android, except because of the ads and shitty Google's hand lol.
It feels so good to have your grouped tabs always accessible at the bottom and you can quickly switch just by tapping the little icon.
Well, if my memory serves well, Ublock Origin has been in Firefox mobile for a long time already but I get you.
Although even before I did the switch I rarely saw ads on Google because I have always used DNS ad blocking (whether using my pi-hole or AdAway root version) but yeah Ublock Origin is just so much better.