Homestead performance suddenly 30-60s on each request

I turned on my PC today to do a bit of developing. First thing I did was a "homestead up" as usual. Then i go to the browser to check that it's ready and nothing happens. I wait for about 60 seconds, and then suddenly the page is displayed. I'm using debugbar and it's saying the boot process took about 20 secs, rest is by the application.

Normal requests take about 0.3 - 1 second. So I thought it was wierd.

Then I did a "php artisan" at the root of my project - that took about 5 seconds to complete, writing out one line at a time visibly!

Seems like PHP is extremely slow for some reason.

Things i tried to fix this:

Checked the CPU / RAM usage of the box and its normal
Updated homestead to 2.0
There are no errors anywhere that I can find
Restarted Supervisord (I have some deamons running)
Restarted nginx
Restarted VM
Restarted host PC
All pages seem to work fine except the crazy load times
I have the code of my project running on a Digital Ocean server where it is running normally
I was mounting a large folder into vagrant, now only mounting the site which is < 100MB
Disabled Debugbar
Hosted a different site to verify that it is not a bug in my project
Put a html file in the public folder and it loads instantly from the browser
Reinstalled VirtualBox + Vagrant + Homestead
I have plenty of disk space left