Does this look like damage from spider mites?

I've had this gal since Christmas and she came with a bit of mechanical damage, but was clear of pests. I did go ahead and quarantine for a little over a month, as I do with all new plants. I noticed a few days ago that a lot of her leaves look sad. Brown spots and some badly crisped edges. Her newest leaf, pic number two, has some weird yellowing toward the bottom. I noticed a bunch of very tiny, whitish colored mites, quickly scurrying around the leaves and stems. No webs or eggs or debris, so I am wondering if maybe they are some type of predatory mite, but the damaged leaves concern me. I don't want to treat her if we don't suspect spider mites. Does the damage look like it COULD be from spider mites?

I water her roughly every 10-13 days. High humidity. Pot has drainage and substrate is very airy. She sits under a grow light for about 10 hours a day.

Thank you SO much for any input you can give me.