When you press Ctrl-J you will see statistics of current used renderer.
In general case it is madVR statistics.
In my case I open 23.976 fps movie. SVP interpolates new frames to get framerate 59.94 fps.
madVR renders these 59.94 fps at 59.972 Hz and gives 39 dropped frames at start. The number is not encreased while playing. It is mean no more dropped frames. It is good! Must to be so.
And I see message about 1 frame repeat every 1.29 minutes. It is not bad.
But it is only statistics of rendering frames (not of really showing frames). So, to make sure you have smoothness enough you need to launch tearing test line movements on the screen. If it moves smooth then all is good!
What numbers do you se? What is wrong in your case? Maybe screenshot?