I think it's always been this hot (and has been the bane of my life since moving in here).
Yes, it does tend to burn things - especially cakes - they go black around the edges before the inside is cooked. I do reduce the recommended cooking temperature when using fan-assisted. I have started having to cook some things covered in foil just to avoid the smoking and burning smell.
It takes about 20-25 minutes to heat the oven up to 180 dg C. I'm not sure how quickly it's supposed to heat up but that is another annoyance.
Would welcome your comments/suggestions.