Global access via VPN, opening, changing and saving of illustrator, indesign artwork files stored at 1 location.

[#1]

I have a question regarding opening, changing and saving of artwork files (Adobe illustrator, Adobe indesign) which are stored at 1 location (data server).
It should be possible to open, change and save this artwork files from any location around the world with a good performance (copying of the file from the data server to the local destination is not allowed).

Currently we are using a secure VPN B2B connection, but the performance is not good enough. Citrix environment is also tested with not sufficient results.

If the artwork files should be stored in the cloud, should that improve the performance ?

[#2]

I have a question regarding opening, changing and saving of artwork files (Adobe illustrator, Adobe indesign) which are stored at 1 location (data server).
It should be possible to open, change and save this artwork files from any location around the world with a good performance (copying of the file from the data server to the local destination is not allowed).

Currently we are using a secure VPN B2B connection, but the performance is not good enough. Citrix environment is also tested with not sufficient results.

If the artwork files should be stored in the cloud, should that improve the performance ?