Found someone with a 750ti and sent them the game, with a lot of tweaking and settings altering we were able to get a ~50fps at 1080p while keeping the reflections/game looking great. ( r.Lumen.Reflections.DownsampleFactor set to 0). This mainly included changing TSR to TAA, screen percentage, etc. Lumen is blowing my mind, being able to run this quality of reflections on a 10 year old card is amazing!
Thanks everyone for your help figuring this out