Camera integration crashing UI / with BlueIris

Hi,

I currently have cameras integrated with HA, taking feeds directly from BlueIris using the following code:

camera: 
  - platform: mjpeg
    mjpeg_url: http://192.168.0.2:33658/mjpg/Cam1
    name: Front PTZ
    username: ??
    password: =??????????
    authentication: basic

Which works fine for up to 5 cameras, however with more than this the UI crashes and restarts. I have created a specific streaming profile within BlueIris that limits the resolution of the feeds as well as the bandwidth - this allowed me to get the 5 cameras i am using now. I want to add an additional 3-4 cameras but this is proving to be an issue due to the crash,

BlueIris is sending the following resolutions:

704 x 228
Max bitrate 300kbps

Home Assistant OS is running on a virtualbox VM with the following specifications:

4000MB RAM
4x vCPU

The screen settings in VB are just set to 16Mb as i presume this isnt required seeing as i am not using a monitor.

Any ideas? Anyone else experienced this?

Thanks.