Simulator device kills my bandwidth

Mac mini late 2012, Catalina 10.15.7, Xcode 12.4
When opening a device (ANY device) in Simulator, my internet usage goes up to maximum usage. Close the device and all goes back to normal.
I am not running any app on the device, nor have I loaded any of my apps on the device - it's a 'clean', 'out of the box' standard device.
I've gone through the whole Simulator menu structure to see whether I have missed some setting, but found nothing.
This behaviour makes it near to impossible to test my app.
Anything I can do to resolve this issue or do I wait for 12.5 to come out and hope it resolves itself?

I have same trouble. Cleaning cache of ios simulator solves my problem.

xcrun simctl erase all

run this command.

i have the same problem on macbook pro macos monterey 12.2.1 xcode 13.3 when i close the ios emulator, speedtest =~ 30 Mbit, when i open without installing any app on it (only turn on the device) speedtest =~ 3-4 Mbit.

"xcrun simctl erase all" Didn't work for me

What worked for me was signing out of my apple id on my mac. Then opening up the simulator again and going to Device > Erase all content and settings.

Simulator device kills my bandwidth
 
 
Q