Thanks for going through the whole campaign! You settled a doubt I had - the burning does drag in the middle levels, I'm on it before the jam closes. Phone aiming noted too, touch is the hard case. Endless ramps up a lot faster if you ever get a minute for it.
Update is live (v0.9.26) - and you were right, it was a bug, not the fire speed: holding your finger down to aim was killing the fast-forward, so on phone the whole campaign ran at 1x. It keeps speeding up while you aim now, and the full campaign went from 203s to 119s. The hint also shows the throw you need right now instead of only the first one, which helps the aiming on touch. Thanks - that one was invisible on desktop. I'll get to wordcraft.