My sites become more slow after installing wpmu dev plugins

Hi WPMU dev Team ,

This is Abhinab from Kolkata. I have more than 30 websites using wordpress. I run a small business here in kolkata, so I choose wordpress to increase productivity and deliver websites at a faster and cheaper rate to my clients.
I came to know about wpmu dev years ago but at that time I couldnt afford its paid subscription but always dream of it. Now when I can actually afford its subscription I am very much disappointed Sir.
After installing wpmu dev plugins like hummingbird or defender, sites actually became slow. In some site it is causing clash. When I disable them it works fine like

Mainly I am concerned about my site speed. Sites like,, etc. they have a really bad score. loading time is huge. and as per your recommendation I tried P3 plugin to test which plugins are causing my sites to become slow or increasing the server response time, to my surprise i found they are hummingbird and defender.
WP Smush actually doesnt helps a lot as I expected while reading wp smush advertisements in my mail.
Please help so that I can make my sites load faster. It is very important.

  • Kasia Swiderska
    • Support nomad

    Hello Massive,

    I'm sorry to hear that there are problems with our plugins on your site. Would you mind allowing support access so we can have a closer look at this? I would like to do some testes with both plugins enabled and disabled to see what could be reason for those problems.
    To enable support access you can follow this guide here:

    I tested now plugins on my site and they are not slowing it down - with both plugin enabled score is higher when there is non.

    kind regards,

    Because I'm not able to replicate

  • Kasia Swiderska
    • Support nomad

    Hello Massive,

    I'm sorry for delay on my end.
    I did test your site and indeed there is difference with 1 second of loading time (from 1,7 to 27) that results in score dropping from 61 to 58 points in google page speed.
    I did another test to compare on my site and with those two plugins enabled my score went from 86 to 95 and server response time went slightly up - 20 milliseconds - so that is not near 1 second I could observer on your site.

    What I also saw is that browser cache is not working correctly when Humminbird is enabled on your site and that is also one of the reasons that your site is not getting better score. I checked and in the past that was caused by the CloudFlare - are you using CloudFlare? If yes can you connect with CloudFlare in Hummingbird so cache values will be controlled by Humminbird

    Also you have some images not smushed and you can try enabling minification (please note that this feature needs a careful configuration as minification and combination of the files can break site - so test files if they can be minified).

    I will send message to our developers why enabling Defender is causing this peak on your server response time.

    kind regards,

  • Massive
    • WPMU DEV Initiate

    No I do not use cloudflare, but I use godaddy vps, I dont know if godaddy uses cloudflare by default.
    The solution that you are providing is not at all helpful.
    You are actually repeating the fact that the plugins are working great in your sites but I don't think that ca be a solution. I want to know why exactly these plugins will slow down the site on my specific websites. And also there is an existing issue of hummingbird writing its own css and I am not able to reflect my own custom css changes.

  • Nithin
    • Support Wizard

    Hi Massive,

    Hope you are doing good today. :slight_smile:

    I got an update from the developer, could you please send us your credentials so that he could give a closer look at your website, and it configuration to check the peak in your server.

    You can send credentials by using our secure contact form:

    Select "I have a different question" for your topic.

    - To Mark to my attention, the subject line should contain only: ATTN: Nithin Ramdas
    -WordPress admin username
    -WordPress admin password
    -login url
    -FTP credentials (host/username/password)
    -link back to this thread for reference
    -any other relevant urls

    Have a nice day. :slight_smile:

    Kind Regards,

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