With the way these KB Updates are now packaged it’s often difficult, if not impossible, to come to valid cause & effect conclusions because they are changing multiple variables simultaneously, e.g., in the below description (from TenForums) several of the items listed at least look like they could have an a effect on performance and/or stability.“I decided to go for the latest update (KB4457131, refs.sys 2457) and after 2 days I can definitely say that it´s slower.”
I mean, after all, once you start fooling with the catacenter...September 11, 2018 KB4457131 (OS Build 14393.2485)
Applies to: Windows 10 version 1607, Windows Server 2016
Improvements and fixes
This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:
Security updates to Internet Explorer, Microsoft Edge, Microsoft scripting engine, Microsoft Graphics Component, Windows media, Windows Shell, Device Guard, Windows Hyper-V, Windows catacenter networking, Windows kernel, Windows virtualization and kernel, Microsoft JET Database Engine, Windows MSXML, and Windows Server.