Can somebody recommend a Website or a Torrent where I could download a Core Snapshot?
You should read
this topic for all the reasons not to do this.
To speed up your sync: add enough RAM to your VM. Or better: don't use a VM. How much RAM does your VM have? If you can add at least 16 GB RAM and 12 GB dbcache, that should improve things.
Along with how many cores are do you have and what other settings are on the machine.
Azure VM is a little vague when it comes to what you have in terms of performance.
And remember, since it's in the Microsoft cloud, they have full access to your drive including any
BTC you have stored on it. Make sure your wallet is encrypted.
-Dave