80C or so is considered normal operating temprature. Even up to 85.
I use an aggresive fan profile myself, which keeps my 570 around 70-72 under demanding games, and 60-65ish on most others.
If it bothers you though do whats been suggested, and what I do. Just set a custom fan profile thats on a auto slope, or set a constant fan speed in CCC.
Quieter Opertaion-Higher Temps Louder Operation-Lower Temps. Thats the cost/trade-off.
Either way, your completely fine and well within normal/safe ranges even leaving it as it is.
FWIW, TR is a bit demanding. As is Witcher 2. The Dead Space games generally do not require much GPU power which is why it runs so much cooler.