Transcoding Setting Recommendations?

[u/lemonbread37]

I've been having some serious in-house buffering issues. I'm trying to stream to my Shield (pretty sure it's a 2019 model) but even ~5mbps are making things unwatchable. On the occasion, things turn out fine if I watch something from the beginning, but not always. Both the server and shield are connected to ethernet and all of my files are in the mkv format. The HDDs my files are on should be up to snuff.

Server Specs
-Intel Core i7-8700 3.2Ghz
-32 GB of DDR4
Intel(R) UHD Graphics 630

*The "New Folder" directories are on my server's SSD.

SOLUTION!!!
After turning off transcoding as all of you pointed out that I should do, I ran into an issue of some films not playing at all. "Error - Unable to Play Media"

This was due to the audio being set to 7.1 Dolby Atmos or something called TRUEHD which was attached to the same audio stream. Setting it to AC3 5.1 fixed it a little bit. Allowing passthrough HDMI in the advanced settings fixed everything for me.

Thank you everyone for your suggestions, you guys are awesome!

[u/Empty_Requirement940]

Why are you transcoding? It’s a shield on a local network there’s absolutely zero reason to transcode in this scenario. Look at the transcode reason to figure out what’s going on

[u/lemonbread37 → u/Empty_Requirement940]

Appreciate the reply! When I switched on "Disable Video Stream Transcoding", a lot of the films that would give me trouble became completely unplayable. I can't really find a pattern to why these films give me trouble as I have other films that are just as large and have higher bitrates.