Thunder App

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An open-source, cross-platform Lemmy client for iOS and Android.

This community is intended to discuss features and feature suggestions for Thunder; as well as friendly, respectful talks about Lemmy in general.

Please use the GitHub repository linked below to submit bug reports, so keeping track of them is easier, and make sure to search first if you already can find an issue for your report.

If there are any developers who would like to contribute, feel free to reach out on GitHub!

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Matrix Space: Link

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TestFlight Beta: Link

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Nightly Community: Link

founded 1 year ago

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Very laggy scrolling in moderately large comment threads (lemmy.ca)

submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]

6 comments fedilink hide all child comments

I've noticed this in the larger threads (several dozens or hundreds of comments), scrolling becomes extremely laggy.

Edit: the lag doesn't seem it be caused by large threads, but by threads containing comments with embedded images

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[–] [email protected] 2 points 1 year ago (2 children)

Hmm, there were some optimizations made for long comment threads, but there's definitely improvements that could be made. Could you open up a GitHub issue on this so that we can track it easier? It would also be good to know the device you're using and OS version!

[–] [email protected] 1 points 1 year ago

Will do, thanks!

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago) (1 children)

Actually, I don't think it's large threads that causes the lag. I just opened some threads with >1k comments and they worked okay.

I think it's threads containing comments with embedded images. Maybe those should be lazyloaded or loaded on demand?

[–] [email protected] 2 points 1 year ago

I tracked down a bad performance issue related to the comments list. I've submitted a fix so you should hopefully see a smoothess boost once that gets added into a release.

There is still some jank with threads that have lots of images. It can cause the comment list to teleport a bit. I think it has to do with the images loading back in but I'm not 100% sure. Needs more investigating.