element-hq / element-hq/element-android

[attachment-viewer] slows down to a crawl when swiping through a few images/webm's

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Kotlin
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Description

Scrolling between a bunch of pictures, screenshots and telegram animated stickers (which end up as webms in matrix) the attachment viewer repeatedly takes seconds to switch between images after a few swipes.

I've done a recording here: https://cloud.bubu1.eu/s/niqYEKRjJaCknab

(apparently github doesn't allow video uplaods :thinking: )

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