Because changing lock screen styles is very resource intensive and the editor in One UI 8.5 is not well optimized.
It isn't like iOS or Pixel where you are using static presets. On One UI, every asset is movable/resizable and the preview must be rendered in real time.
The optimization issue comes from the fact that the lock screen has basically been "under construction" since at least one UI 7, with constant additions every release like new fonts, new font weights, adaptive clocks, real time color mapping, and real time blur on clock digits.
In other words, Samsung is continuing to add to an already bloated system. You'll notice on devices like Galaxy Watch that despite the lesser processor, face editing is nearly instantaneous. This is because the engine deals with lightweight presets rather than a heavy modular system.
If you're using LockStar, you may be able to speed things up a bit by uninstalling it (removing some of the extra weight)
I also have the same question because I've noticed how frustrating it can be when an animation starts lagging badly just from trying to change the style of a clock. You would expect a simple customization, like changing the clock's appearance, to be smooth, but instead the whole editing process becomes slow and difficult. I've also noticed that when working with animation apps like alight motion, performance can make a big difference when adjusting effects, layers, and visual styles. You can check here https://ammod.io/. I'm wondering whether this happens because the animation has too many effects or layers, or if the app is struggling to render the changes in real time. It would be helpful to know whether other people are experiencing the same problem.
CEParsons
Honored Contributor
08-13-2026 01:36 PM
in
It isn't like iOS or Pixel where you are using static presets. On One UI, every asset is movable/resizable and the preview must be rendered in real time.
The optimization issue comes from the fact that the lock screen has basically been "under construction" since at least one UI 7, with constant additions every release like new fonts, new font weights, adaptive clocks, real time color mapping, and real time blur on clock digits.
In other words, Samsung is continuing to add to an already bloated system. You'll notice on devices like Galaxy Watch that despite the lesser processor, face editing is nearly instantaneous. This is because the engine deals with lightweight presets rather than a heavy modular system.
If you're using LockStar, you may be able to speed things up a bit by uninstalling it (removing some of the extra weight)
NoLuvJavi
Comet
08-13-2026 04:27 PM
in
deenrex
Asteroid
10-18-2026 11:27 AM
in
I also have the same question because I've noticed how frustrating it can be when an animation starts lagging badly just from trying to change the style of a clock. You would expect a simple customization, like changing the clock's appearance, to be smooth, but instead the whole editing process becomes slow and difficult. I've also noticed that when working with animation apps like alight motion, performance can make a big difference when adjusting effects, layers, and visual styles. You can check here https://ammod.io/. I'm wondering whether this happens because the animation has too many effects or layers, or if the app is struggling to render the changes in real time. It would be helpful to know whether other people are experiencing the same problem.
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