nochmal was für die Frametime/FPS Freaks: (aus BF3 Tweak Guide, sollte auch für BF4 so gelten ausser der Syntax bei dem Graphen)
Battlefield 3 Tweak Guide | GeForce
render.perfoverlayvisible 1 - When set to 1, this command displays a small chart on the bottom left corner of the screen designed to provide you with key information about your system's performance during BF3. It shows your graphics card (GPU) usage as a green line, and your processor (CPU) usage as a yellow line. The aim is to ensure that during gameplay neither lines spike frequently to
very high levels, as this indicates that the particular resource is being overtaxed, and possibly causing lag and instability. If necessary experiment with your in-game settings until you see a reduction in such spikes. Use render.perfoverlayvisible 0 to close the overlay.
RenderDevice.TripleBufferingEnable 1 - By default Triple Buffering appears to be enabled in BF3. If you've enabled Vertical Sync, Triple Buffering can be useful in preventing a drop in FPS, but Triple Buffering can also reduce responsiveness on some systems, even with VSync disabled. Set this command to a value of 0 to disable the built-in Triple Buffering and test to see if it reduces any input lag.
RenderDevice.ForceRenderAheadLimit 0 - This setting controls the number of frames prepared by the CPU before being processed by the GPU. You can try values of 0, 1, 2 or 3 - higher values may improve FPS but can decrease responsiveness, while lower values do the reverse. In experimenting with this on my system using the performance overlay (see above), I found that as the value increased to 3, CPU spikes became more frequent. Smoothest performance was at 0 or 1, but this can vary from system to system.
Macht Euch bei kleinen Peaks nicht nass. Da ist die Rede von eher grösseren Sprüngen in den Frametimes.
Hat irgendjemand hier an den letzten beiden Variablen was gedreht und kann Änderungen spüren/messen/erklären?