animation/game redraw in normal/turbo mode

[Psistorm]

this is something I have noticed while playing OTTD a few days ago:
if you activate fast forward, the scrolling and vehicle animation is MUCH smoother than in normal mode, where scrolling seems a bit jerky, same goes for train anims.

I wonder if it would be possible to improve the redraw rates, so that the whole game runs smoother, imho it would improve gameplay a little, since it would be better for the eyes (scrolling a lot for a while makes my eyes hurt a bit, since the scrolling is a lil jerky)

I dont know how much work this would be (since the game speed might be based on the redraw intervals), but it would be nice to have :9