We are using the C++ UIA library to run Automations in Edge and we have noticed a rather large performance slowdown since updating to Edge version 125.

The major offender seems to be a call to IUIAutomationElement::FindAll, although never the speediest of requests, this was working fine with version 124 and below.

We have also tested the beta release of 126 and the Dev version of 127 and are seeing the same issue.

UIA performance when interacting with Chrome, and other desktop applications is unaffected, it is only when interacting with the latest Edge releases we are seeing a problem.

​We are using the C++ UIA library to run Automations in Edge and we have noticed a rather large performance slowdown since updating to Edge version 125. The major offender seems to be a call to IUIAutomationElement::FindAll, although never the speediest of requests, this was working fine with version 124 and below. We have also tested the beta release of 126 and the Dev version of 127 and are seeing the same issue. UIA performance when interacting with Chrome, and other desktop applications is unaffected, it is only when interacting with the latest Edge releases we are seeing a problem.   Read More

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