One strange occurance that I experienced in Skyrim since day 1 is the odd ways in which Saber Cats can move. In particular, I observed that they are fond of performing 360o rotations at high speeds, specially if they have trouble reaching the player.

Has anybody else experienced this? It can't be because of mods because the only ones I'm running are the unofficial patches, SPERG, morrowloot and some visual mods like RLO and RealisticWater2.

I was thinking that this behavior may be caused by the fact that Saber Cats are so fast that their own animations can't 'keep up' with them (if that makes any sense).

If this is a common issue, I was wondering if there is any fix for it?

Thanks in advance!

I experience this occasionally too. Other animals (like bears) sometimes have weird animations too. I'm not completely sure, but it could be an engine bug. It may also happen if your refresh and/or FPS rates are set too high. If your monitor is set to a refresh rate greater that 60 Hz, using a frame rate limiter to cap your FPS rate at 60, may possibly solve this (assuming it happens frequently).