Strange, I am rarely experiencing any lag on my four year old mid-range model, browser included. Maybe we have a very different perception of what lag is? Or maybe you have an insane amount of background processes running that bogs down your phone?

Camera is not great, but I always have a good time looking back at pictures taken with it and it is certainly much, much better than what I took 10 years, let alone 20. If your flip phone took better pictures, something is wrong and there could be ways to fix that.