That's precisely the reason I stick with Windows Phone as well. Even with a flagship-level phone Windows Phone is super slow, so, on top of what you mention, it makes me not want to use it as much.
Being so limited is rather freeing.
Being so limited is rather freeing.
This hasn't been my experience at all. I have the absolute bargain basement Lumia 640 as a backup phone and it feels positively snappy. Perhaps it's because I have barely anything running on there?
The only feature WP has was super snappy on the cheapest one.