I have a very different experience from most of your issues, to the point where I think something is wrong with your install.
I can scroll through a page of >1000 movie cards and there's no choppiness or lag at all in the webUI. The cards have blurhash placeholders until the actual thumbnail loads, which is always very quick.
Swiftfin for the Apple TV is admittedly very barebones and can be choppy when scrolling through big lists, but it has never lost pairing or failed to load anything for me.
New media shows up pretty much immediately for me. Did you disable the "real time monitoring" setting in your libraries? Jellyfin will use something like ionotify or whatever your platform/fs supports when it's enabled.
"separately configure tiles to be rendered" is one checkbox, assuming you're talking about trickplay images, which was a recently added feature and I think is enabled by default for new installs.
Having placeholders is part of what I’m talking about when I say lag, and jank is about dropping frames so that things do not appear smoothly animated. Not everyone is as sensitive to jank or they’re ok with it, but if you use something that lacks jank in the animations it feels better even if you don’t know what jank is.
The media detection thing might be related to Infuse and not to Jellyfin itself, since it sounds like everyone else isn’t having this issue, which is good to know.
What sort of hardware are you using to do transcoding of the content on the source box? You could try adjusting the quality (or type) of the transcoding to potentially improve this. Like, perhaps you are trying to transcode into a format for which your video card doesn't have built-in encoding? (Like, nvenc units on an nvidia chip, if that's what you have.)
You could also try setting up directplay, if your stack supports that.
Lastly, it might just be a limitation of your host hardware. What are you running your jellyfin server on?
I can scroll through a page of >1000 movie cards and there's no choppiness or lag at all in the webUI. The cards have blurhash placeholders until the actual thumbnail loads, which is always very quick.
Swiftfin for the Apple TV is admittedly very barebones and can be choppy when scrolling through big lists, but it has never lost pairing or failed to load anything for me.
New media shows up pretty much immediately for me. Did you disable the "real time monitoring" setting in your libraries? Jellyfin will use something like ionotify or whatever your platform/fs supports when it's enabled.
"separately configure tiles to be rendered" is one checkbox, assuming you're talking about trickplay images, which was a recently added feature and I think is enabled by default for new installs.