It depends on lot off factors:
1. VM RAM and CPU allocation/usage.
2. Your Internet bandwidth and how did you connect to the VM( proxy or direct access)
3. Is it only Linux machine or any Windows VM too?
4. what about VM to VM data speed? is it normal?
Try to create a shared folder/NFS and download some files in LInux to see the speed.
If VM to VM is fine, i would rather see the issue from Internet speed/configuration.
Hope it helps.
Sincerely,
Rahul Parmar
VMware Support Moderator