In the last few days when scrolling on pages with lots of uploaded pics, it takes very long before they appear. Even if you hold still for a few seconds on a page spot, it still takes 5-6 seconds or longer for something to appear.
You might wanna try and sell everything as one lot, that will save you a lot of time and effort.
Will be hard to define its value though.
Selling each pair by itself takes a lot more time.
You might also consider selling via some consignment shop.