New RIFE filter is awesome!...but not using GPU?

I just started using SVP again after about a year-and-a-half haitus and all I want to say that this new RIFE filter is mindblowing!  Talk about smooth video.  I've got a very low end GTX 1050Ti mobile in my laptop and I'm still able to run it realtime though, which is great. In order to do that, though, I need to run 480p vids at about 25% speed on MPV.  It also works on MPC-HC at very slow speed.  But it works.  It gets real stuttery at higher speeds but "locks in" when you hit around 35% into smoothville.  Totally cool.

The one thing I notice, however, is that it's only hitting my GPU for about 5%?  And the Intel CPU for about the same?  Is it supposed to be this way?  It's the same for transcoding.  Takes a long time to transcode a short vid but it only uses a tiny poercentage of the GPU, if any at all, and I have the setting on NVENC.  Any thoughts on this?  How to get more GPU usage?