Hi there David Thielen
Thanks for using QandA platform
Hi David,
This should not cause a significant performance hit. The overhead is minimal because no telemetry data is being sent.
also check, There might be a small initialization overhead when the application starts.
Since telemetry is not being sent, the main performance impact of Application Insights is avoided.
In summary, i think the performance impact should be negligible when Application Insights is turned off.
If this helps kindly accept the response thanks much.