need help cfg/cpu

First of all my config doesnt seem to load!!! I created a text file and saved it as "user.cfg" in the Battlefield folder ( WITH the setting "all files") as explained in many videos/guides. Sadly my Fps is never shown in the top right corner, while i have the cfg settings copy pasted from guides:

GameTime.MaxVariableFps 125
PerfOverlay.DrawFps 1
PerfOverlay.DrawGraph 0
PerfOverlay.Enable 1
PostProcess.DynamicAOEnable 0
Render.DrawFps 1
Render.DrawScreenInfo 1
Render.PerfOverlayEnable 1
Render.PerfOverlayVisible 0
RenderDevice.Dx11Dot1Enable 0
RenderDevice.Dx11Dot1RuntimeEnable 0
RenderDevice.Dx11Enable 0
RenderDevice.ForceRenderAheadLimit 1
RenderDevice.TripleBufferingEnable 0
Screenshot.Format jpg UI.DrawEnable 1
WorldRender.DxDeferredCsPathEnable 0
WorldRender.FxaaEnable 0
WorldRender.SpotLightShadowmapEnable 0
WorldRender.SpotLightShadowmapResolution 256
WorldRender.TransparencyShadowmapsEnable 0
WorldRender.PlanarReflectionEnable 0
WorldRender.TransparencyShadowmapsEnable 0
WorldRender.MotionBlurEnable 0
WorldRender.MotionBlurQuality 0
WorldRender.MotionBlurMaxSampleCount 0
WorldRender.LightTileCsPathEnable 0

So what have i done wrong?

Also i only have these settings in my config. If some1 knows more commands to increase my fps i'd be glad to hear them. Last but not least:"Tweaked and improved CPU multi-core utilization to try and avoid stuttering and low framerate due to stalls that happened on some CPU and OS configurations. -Users can now configure and control themselves how many CPU cores should be used in the game with the new “Thread.MaxProcessorCount” settings in User.cfg. "

How can i use the "thread.max.processorcount"? My pc seems to overheat after 30 minutes of playing and my fps drop then always, what would be best processorcount for me?

I hope i can get some help here