WebDav vs. Hard Drive

I finally set up my Synology NAS and enabled a WebDAV server on it. I synced data in a few cloud services and re-synced all data in Synology to a local hard drive using Synology Drive. I aim to quickly search and see the documents I searched, which I couldn’t do when I indexed Google Drive. Now, I have indexed data in the local hard drive to use it and (stupidly) realized that I could use WebDAV now!

Here is my simple question.

As for the speed of searching and displaying documents, I assume the local hard drive is faster than searching data in WebDAV. Am I correct?

When I indexed all synced data in the local hard drive, should I also connect WebDAV and other cloud services that I can sync via DevonThink Pro?

Thank you for your thoughtful and kind response in advance,
JB

I assume the local hard drive is faster than searching data in WebDAV.

Yes, a connected external drive would be faster (and more resilient) to search than a networked volume.

re-synced all data in Synology to a local hard drive using Synology Drive.

Note: I would make sure your DEVONthink databases aren’t being synced via the Synology Drive application.

should I also connect WebDAV and other cloud services that I can sync via DevonThink Pro?

Why other could services? Do you actually need to use a remote sync option?

I’m a little confused about your setup. Where is the the DEVONthink database(s)? Local or on the WebDAV server?

This suggests you are synching the DEVONthink database from local to the NAS? I’m not sure that a good idea.

I use Synology WebDAV only as a sync service. The DEVONthink database are on local devices (Macs and iOS devices). Synology Drive not involved.