I'm pretty sure I've nested VMs on my AMD system. I just Googled to check, but it's muddy, and I don't have time to check fully.
Edit - Yep, I just nested a HyperV VM.
https://www.emclient.com/blog/em-client-for-ios-and-android-is-officially-here-671
I've just put it on my iPhone and it's looking pretty good, I was really impressed with the ability to scan a QR code generated from my desktop app and it sett all the accounts and stuff up :D
No, I'm sure the same people would be viewing for slow internet and DNS problems, it just helps that they know not to restrict their help just to DNS as it could well be something else.
I don't have much input on this subject. However, I'm curious to know what leads you to believe you have slow DNS resolution—some form of test or real-life browsing slowness etc?