This is seriously one of the most worst running and most ugly "professional" engines I think I've ever had the pleasure of experiencing. Even the fucking Gamebryo engine doesn't give me this much SHIT.
How can an engine be this poorly optimized and be this much of a lottery whether or not it will play nice with your system? I have a mid-range PC with only a 60hz monitor and I can play Witcher 3 at med-high 50-60 FPS, DOOM with everything on high-ultra at 55-60 FPS, MGS 5 with everything on high runs at 50-60 FPS, GTA V med-high 50-60 with a rare dip to 40-35 in highly dense areas runs at FPS.
Yet games that use this piece of shit will preform abysmally regardless if I turn everything off and put everything on low, it doesn't matter. They all play like shit and look like a stuttery fucking mess. Wolfenstein, The Evil Within, Dishonored 2, they all jump around constantly, never once maintaining a constant 60FPS. I haven't tried Rage since release but I remember that being awful as well.
What the fuck went wrong and what causes this engine to do this? Is it the texture streaming? If so, most the textures look awful in these games, and my card has 4GB of VRAM which should be enough for them.
Bethesda thought it was a great idea to have it be designed by the programming genius John Carmack.
Problem is, nobody accounted for the fact that he would simply make an engine only he understands.