Does it smooth it out? Yes!
But does it do a great job doing it? Not so much currently.
If u check this panning scene from the start with LSFG:
https://drive.google.com/drive/folders/ … nG0qJnlw4I
You can notice how even if you see that everything goes up, LSFG does not know the direction of the movement.
So it will create artifacts on left/right side of the screen where the stars teleport left/right/up/down around their initial positions instead of going up.
This looks horrible and really confusing and makes me always pick the Automatic Interpolation which simply pans the scene up.
RIFE is on another level, it somehow identifies the objects and generates new frames based on where the objects will move next, making the movements more accurate than Automatic.
Pick what u think it's best (or just use the resize functionality to decrease video size u send to SVP until your hardware reaches your desired FPS).