I played around with MPC-BE as mentioned and added in a few more renderers to play with. Interesting, but I'm not actually using that player at the present time.
Still using MPC-HC (last pre-clsid2 version) but I did tune it to work well with my Windows 10 setup (broadwell cpu, intel hd 6000 graphics) which required different settings than what I was using on Windows 7.
On Windows 10:
-LAV video decoder set to DXVA2 copy-back and the hardware device specifically selected to be the 6000.
-In MadVR renderer (I did test all the other renderers and setting changes as well) but I like MadVR. In it, on the rendering general settings tab all unchecked except for only "enable windowed overlay (Windows 7 and newer)", dithering settings unchecked "use colored noise" (using ordered dithering with it), exclusive mode settings to 3 for video frames presented in advance and windowed mode settings unchecked "present several frames in advance" and backbuffers set to 3.
-For scaling algorithms, DXVA2 for upscaling and downscaling, and for chroma, bicubic 60 anti-ringing.
I have other setting changes of course, but those are the main ones that I found gave me a "smoother" video experience on W10. W10 doesn't have a true exclusive mode anymore. I tested everything.. DX11, etc. Different graphic cards will respond better to different settings, but on my integrated older GPU with the video drivers I'm on, these were the settings that were good for fluidity.