The stock One UI has heavy animations. Custom ROMs strip away Samsung’s framework. On a clean AOSP ROM, the Snapdragon 450 runs 40% faster in UI navigation. App opening times drop by half a second. The dreaded “System UI has stopped” error vanishes.
The Galaxy J8 stops officially at Android 9. Custom ROMs (such as those based on AOSP or LineageOS) can upgrade the device to: samsung galaxy j8 custom rom better
The biggest complaint with the stock J8 is the lag. Samsung’s Experience UI (and early One UI) was heavy on the Snapdragon 450 processor. The stock One UI has heavy animations
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