I can’t speak about DLSS since I have an AMD card but I use the AMD Adrenaline’s external FSR and have reduced my ingame resolution to approximately 60%. My TV screen that I use as a PC monitor runs at 60 Hz and with VSync set to 1:1 refresh rate it’s a cristal clean and really smooth experience in the DC6 now, DX11. It required a bit of try and error but I’m really happy now. I’d encourage you to try and play around with your system a bit, the NVIDIA control panel is quite good if you don’t overdo it and there are really many tutorials around. Your system is not bad at all, really. 16GB is on the lower side but still capable enough, 3200MHz for a 5600X is absolutely fine. If you have stutters it’s a settings thing.