hard to tell without pics, touch the bottom of one of the leaves with something like a needle or pen, look close, normally you can see mites if you look close enough and disturb them so they move around on the leaf
mites are usually underneath the leaves, not on top.
depending on the severity of the holes, the browning around the outside could either be from the same problem, or nute deficiency/ph.
i would plan on buying some insecticide, pics would help a lot too.