ESI + Perfmatters

When trying to get to my Perfmatters setting pages for the Script Manager, I’m getting this url if ESI is turned on:

https://mydomain.com?lsesi=admin-bar&_control=private%2Cno-vary&esi=eyJyZWYiOiJcL21hYm9pdGVhbHVuY2hcLyJ9&_hash=0f15a2dcba5103d9d3c9e678aeccbaa3&perfmatters

But if I disable ESI, I get this: https://mydomain.com?perfmatters

The problem is that when viewing the first link (the one with the long string), the layout of the setting’s page is all wrong.

Screeshot of the page WITH ESI on: https://tinyurl.com/y3w6krok
Screeshot of the page WITHOUT ESI on: https://tinyurl.com/yyb34jr3

Thanks,
Phet