Hi guys, I had a prebuilt system for a while and decided to upgrade. It had a gtx 960, which I replaced with an inno3d 1080ti x3 (bought used, in warranty). The other specs are i5 4460 with stock cooler, h81mk mobo and 2x 4gb ddr3 ram. In games such as Metro Exodus, fc new dawn and Vampyr I have quit a bit of stuttering at 1k res with ultra settings, on a 144hz 1k monitor. My GPU temps are also quite high (around 87c), and dont know what to do to fix this issue. I havent overclocked anything and my drivers are up to date, could this be an issue with the gpu being faulty cuz of the high temps or my bad CPU bottlenecking it? I know it is dumb to add an 1080 ti in that setup but I'm looking towards upgrading the rest of the build in the upcoming year so a new GPU was going to help me game atm the most so what could be wrong?