I'm running TLD in DX11 and I see frequent to infrequent freezes. Save one recent instance where I put an oil lamp on top of a box next to the furnace in the Riken, they all appear to be happening at random, but I wonder if they are more frequent in very high FPS areas. No real proof there, but a number of them happened indoors and around the outer edges of the maps - enough of them didn't for me to be uncertain about that theory though. System specs: Windows 10 Pro 64-bit COEM edition