At times it can seem like under 20 frames can't get a smooth animation and an example would help so here, courtesy of Dorcan is an example:

this is 16 frames and it is quite quite smooth.
if you have a 30 frame walk cycle deleting every other image and bringing it down to 15 i bet it still looks just as smooth, give it a try maybe?

this is 16 frames and it is quite quite smooth.
if you have a 30 frame walk cycle deleting every other image and bringing it down to 15 i bet it still looks just as smooth, give it a try maybe?