Stacks making Google pagespeed insights worse?

Used vanilla RW for years with just some Nick Cates themes. No problems but recently went to use the Aspen theme and then looking into Stacks for SEO helper and a threw in an image cycler (Cycler3) since I was using stacks already.

My home page reports worse built with stack vs vanilla RW.

After looking at how to make images in the cycler small file I noticed that when I downloaded an image from the live site the PNG was considerably larger. (Was 47 KB but 200 KB on site) Is this normal or a RW or specific Stack issue?

For the speed test I ran both over sever days back to back to make sure it wasn’t just a one time thing.

Vanilla

With Stacks