Lag Spikes: Unknown Cause

Is there any way that there can be an option to get rid of some animations? The Lag Spikes happen most frequently during battles, which leads me to think that this may not be animation, but I don’t know. I looked at my resource monitor and saw that it was only using 1 CPU. The Lag Spikes may be caused by these collective things too. These issues happened still even after I turned render distance to 500 and shadows off. Sorry if this was a slightly confusing post.