Accessing single file via script without downloading it completely

Hi everyone,
I am new to Nextcloud, I hope you will sorry everything wrong I will write.
I’ve installed the Nextcloud client and connected to a drive provider who support nextcloud as interface client (Aruba drive).
I elaborate some files I have in the drive (videos mainly) using python script and the opencv library.
When I was using opencv to read a non synchronized video file from Google drive, the reading procedure was fast, and only basic information + the first batch of frames (I guess). With nextcloud however, reading a non synchronized videofile means downloading it completely and then elaborating it.
I know google drive client and Nextcloud works with different protocols, but I was wandering if there is some configuration of Nextcloud to enable the incremental download like google drive.

Kind Regards,

You should mount it with → WebDAV ←