Additional space on a budget VPS - how to increase it with third-party services?

Question

Network administration

I bought a VPS, at the rate of 40GB of space. It costs WS 2012 R2, the 1C bases fit quite well, however, there was a need to store and work with various office documents.
My client connected via RDP using the connected local disks of the machine, and this suited her until the moment she began to work from several workplaces.
To store 1s backups, I used a Yandex disk connected via Webdav, but it proved to be extremely bad for work. That is, to open a document, edit and close - everything is very long.
Actually the question is - will it work faster if you use a disk bought here, for example - ru.hetzner.com/hosting/produktmatrix/storagebox-pr...
Support recommends switching to VDS, since they do not allocate additional space

Answer 1

no, storage boxes are better not to use like that, plus they don’t have very much guaranteed storage

Answer 2

try to mount a good ftp hosting, for example ihor, with a disk, it gives 2GBS during the day....