Whenever I have SEP 14 MP1 (2332) or MP2 (2415) "Proactive Threat Protection" installed and an active network connection (tried wireless and wired WAN. Didn't try just LAN), any system I tried is running much slower than usual. Most programs take seconds to launch, instead of instantly.
This happens on any windows 10 1703 x64 system that I tested (multiple configurations, including vanilla WIN 10 Creators Update systems), so can be easily reproduced.
As a workaround, I am able to eliminate the performance issues by:
1) Uninstalling the "Proactive Threat Protection" module. This completely restores performance.
2) Disconnecting from the internet wired or wiresless connection. This almost completely restores performance.
An easy way to test this is by opening up "device manager" from the start menu search or from cortana search. Typically it should launch instantly, but it can take 2-10 seconds (depends on the machine I tested) with "Proactive Threat Protection" module and an active internet connection.
Is there any other way to fix this without uninstalling PTP module or disabling the connection?