Video playback slowness and instability

I’ve been playing some WMV videos using MonoGame and found the results of sluggish, instable and stopped playback.

My questions are:-

  1. is the player using Media Foundation or DirectShow under the hood?
  2. is it copying the texture using the CPU? as the CPU usage is 20-50% on the playback of videos - would you expect this amount and is there a possibilty of using the GPU? have I missed something / understood?
  3. are there any options, alternatives, anything to improve playback?