Streaming Problems with large files via WebDAV

Hi quick question I think I have problem with my network connection and my WebDAV Library. First of all I’m using the latest Infuse Pro with my ATV 4K and I have a Synology 718+, Fritzbox 7590 and VDSL 50.000

When I’m streaming files <10gb everything works flawlessly but files >10gb stutter and I always see the loading cycle. Do I have to upgrade my Internet connection or can I change some settings to tweak the connection?

Is your Apple TV using a wired or wireless connection?

Are you streaming from a local source or are these files stored somewhere outside your home? If streaming local files, you may be better served by using something like SMB or NFS instead of WebDAV.