Serve Scaled Images Problem

Hi bro, i like your plugin and i use it, but when i test my site on gtmetrix, i took lots of serve scale images problem. Forexample like this…
https://scontent-frt3-2.cdninstagram.com/vp/1c29aa5a1c26b8a9ed9584f869a9ce24/5E60D4CF/t51.2885-15/sh0.08/e35/s640x640/72405635_2738878223011087_1349354192267006580_n.jpg?_nc_ht=scontent-frt3-2.cdninstagram.com&_nc_cat=107 is resized in HTML or CSS from 640×640 to 124×124. Serving a scaled image could save 107.8KiB (96% reduction).

How can i solve this problem. This is important for me. Thanks…

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