Yes, there are two ways of doing that... I can add some more frames to the animation, meaning that final file size (animated gif) will slightly grow, but the animation will be super smooth.
The other way is to slow down the speed of this one... meaning, lower the frame rate from 4 frames per second to let's say, 6 or 7 fps. Right now I am in the middle of something, but as soon as I am done, I will try to post both versions and you see which one you like the best.
Cheers!