gaming peformance

I've bought a GIGABYTE GV-N950WF2OC-2GD Graphics Card 2 years ago. Back then, I don't remember if I had any problem with its cooling system or the GPU temp. But now it heats up to 78 C GPU and 87 C for hot spot (reported by GPU-Z) when playing games. It heats that much even in medium-light games...