How to set snap grid for Variaudio and time warping?

Is there any way to set the snap resolution when using Variaudio and time warping? It seems that the only “snap” positions are at 1/4 notes. I have tried adjusting the quantize settings but it doesn’t have any affect.

Is there a way to change this snap resolution to 1/8 notes, 1/16 notes, etc.?

Anyone?