Hi,
In addition, do not keep snapshots any longer than you need them.
That also means don't use "Auto protect" as first it doesn't protect you and second it also doesn't help for performance to always have several snapshots open.
Note that if you are not using a Fusion drive then I do recommend the split disk scheme. The single virtual disk file only helps for performance on a Fusion disk, on all other disk types use the "split into multiple files" option.
Minor nitpick. It hasn't been "2GB split disks" since Fusion 7, that limit has been upped to 4GB.
Also note that there's a size limit per slice depending on the virtual disk size.
Capacity Disk slice size
================================
<=128GB 4GB (increased from 2GB)
>128GB && <2TB Capacity / 32 (so maximum of 32 extents)
>=2TB 2TB
Other side notes:
If you assign RAM to your virtual graphics adapter then that RAM is taken away from your host RAM (not the graphics adapter)
Standard network shares are faster than the Host Guest shared folder feature. Disabling HG shared folders is a troubleshooting step with performance issues.
If you use an antivirus product then make sure that it excludes your VM bundle as it will slow things down.
If you want to exclude your VMs from ending up in an APFS snapshot then you can store the VM in a HFS sparse image or HFS partition instead.
--
Wil
edit: reworded for clarification
