Is there a way to remove gms after having already installed it? Guess youtube app won't work ?The HP Touchpad only has 1GB of ram of that 952 is usable if the memory allocation to camera is removed from the Kernel that is 12 MB extra free. Google services will slow down the Tablet as it has many background services running. Apps will work extremely fast install without using the google play store. Kodi ( 19 Matrix compiled 2-18-2021 ), works perfectly with no gapps and has a lot of memory available, over 700 MB.
I do not use VPN and I can not provide a solution, but it seems VPN apps does work on 9, I replied to your vpn on the other thread.