Huge movement speed spike when changing equipment while moving

[Straeker]

Hi everyone,

I get a huge movement speed spike (my speedmult goes up to like 3000 or -3000) when changing weapons or spells while moving. It specifically seems to occur when my character does the unsheathe animation for whatever I equipped, but that might be coincidental. It also adds so much momentum to me that even if I stop moving completely, my character will circle whatever enemy I am locked onto (True Directional Movement lock-on) for like 30 seconds, just zooming at full speed. Using player.forceav speedmult or any variation of the av console commands doesn't affect it. I can sometimes get it to reset by changing to a different weapon type.

Any ideas what might be causing this? Could every one of my mods that impacts movespeed be responsible? Why is it occurring only when changing weapons/gear? Ive seen threads saying that speed is tied to FPS in some way but I don't know how that could be relevant here. Any ideas are welcome.

Load order is attached. SlowEffectFixes.esp is a recent addition from the Nexus that I thought would help, but seems ineffectual, so I don't think its a cause of the issue.

loadorder.txt