Issue inside sql database “wp_ewwwio_images” table (Very Large Size)

Hello..

Ι have a Woocommerce website with about 13.500 simple products with 5 picture each.
The website is on a fast semi dedicated Server.

I’m using your plugin almost 2 years now and i’m very pleased and thank you for this.
I noticed that my website over the years its slowing down because every month i added about 200 to 300 products every month, so i started explore ways to make it faster.
Before some days the website crashed because the memory and resources of my server was full.

I entered phpMyAdmin and i noticed that there is a very big table inside the database sql and its name was wp_ewwwio_images, with 467Mb size.

I spoke with my hosting provider and they told me to communicate with the creators of the plugin.

What does this table do? Can i erase it? Optimize it somehow?
Can you please advise me what to do?

The page I need help with: [log in to see the link]