2:45 pm to 3:20 pm learn these how work fps(Frame per second) on videos
if video of fps 60 on 100% accuracy It mean every one second generate 60 frames
if video of fps 60 on 200% accuracy It mean this videos skipping frames video is fast running beasuse the actuall video accuracy is 100% so if increase speed accuracy 2x mean 200% so every 2 second image frame missing.
if video of fps 60 on Accuracy 40% It mean this video is slow so in this case video is showing lag
so avoid lag for generate duplicate frame.
so in davinci fearue RETIME AND SCALING feature ON
this feature ON in Retime and Scaling select OPTICAL FLOW through generate duplicate frame
then video does not lag in slow motion