Are you using DLSS? It's really good and you could leverage the extra fps boost. Vsync without Gsync will have some frame juddering, is just the way it is especially when you're pushing the GPU hard. I suspect your CPU will be the bottleneck...
I did a comprehensive comparison of RT vs PT vs Raster vs Frame Gen vs DLSS vs DLAA. The results are telling, and the quote from Nvidia that DLSS is better than native is 100% accurate - When a game implements all these technologies properly...
The car mods coming out for this are outstanding in quality, so much detail they put SIM car games to shame.
I give you a few new ones I installed recently