Forum Discussion

Iron Contributor

Apr 08, 2022

Extremely Slow Performance Since Defender Was Pushed on Us

Compliance, Security, Protection, and Defender are all extremely slow, with responses from screen to screen ranging from 30 seconds to multiple minutes between clicking items and waiting for Microsof...

Microsoft Compliance Manager

microsoft defender for cloud

microsoft defender for office 365

threat protection

dutch645

Copper Contributor

Apr 01, 2023

Reza_AmeriI don't think it has universally gotten any better. I submitted feedback through the quarantine processing web page on a number of issues, including poor response time 5 to 30+ seconds. But there are other issues, including

1. the cumbersome page layout, where the information is at the top, with a large white area, and a button at the bottom.

2. There is plenty of room to have one pane with block, report, and delete instructions on one page, but they are separate.

3. If you have the message list view, and select an option, it still opens the individual pane on the side for the message.

4. In a high resolution laptop screen, for example, a Dell XPS 9360, sometimes the buttons on the bottom aren't visible, and there isn't a vertical scroll bar.

5. In trying to block a message, I have had several instances where an error message pops up, pointing at a message that isn't in the quarantine, and which I recognize as a legit message. Is it incorrectly trying to delete messages it shouldn't? I can't tell.

Reza_Ameri

Silver Contributor

Apr 02, 2023

In such case, Microsoft engineers need to investigate and the best is to submit feedback and people with same concern could upvote it.

VNJoe
Iron Contributor
Apr 03, 2023
You said this exact thing a year ago. Scroll up.
- Reza_Ameri
  Silver Contributor
  Apr 04, 2023
  Your issue couldn't be fix by other troubleshooting steps like writing script , running commands and so on. Only Microsoft Engineers could review and release a fix. However, in case you want to investigate the issue yourself, then have a look at:
  https://learn.microsoft.com/en-us/microsoft-365/security/defender-endpoint/troubleshoot-performance-issues?view=o365-worldwide
  You might find some clue there.
  - VNJoe
    Iron Contributor
    Apr 04, 2023
    Reza_Ameri It could be fixed by allowing me to turn it off... Can you believe it filtered the notice there was a response to this post into quarantine? It'd be hysterical if it weren't true...
    Sad