I am writing to raise a serious performance concern observed on flagship devices like the Galaxy S24 Ultra, S25U and even newly launched S26Ultra.
The issue is consistent UI lag and frame drops during real-world usage scenarios involving dynamic content and image-heavy lists.
This is not limited to a single application. The same behavior is observed across:
Amazon app (review section scrolling)
Flipkart app (product listing with rich media/3D thumbnails)
WhatsApp (sharing 70–80 HD images with preview generation)
Samsung Quick Share (opening shared links with large datasets) [imagine your native app also struggles]
A key observation: The same content, when opened in a browser, performs smoothlywithout lag. However, within apps, the UI struggles significantly.
This clearly indicates that the issue is not related to hardware capability or network conditions, but rather system-level scheduling and UI rendering behavior.
Additionally, competing Android devices in a lower price segment (e.g., Vivo, OnePlus or Pixel devices) handle similar scenarios more smoothly, suggesting that aggressive UI prioritization and better thread management can significantly improve perceived performance.
As a flagship user, it is frustrating to experience such inconsistencies in everyday applications. While Samsung continues to introduce new AI features, core UI smoothness under real-world workloads requires more attention.
Request: Kindly investigate and improve:
UI thread prioritization during heavy workloads
Image decoding and rendering pipeline
CPU scheduling behavior during scrolling
Check/optimize RecyclerView and its lags
This is a fundamental user experience issue and not an isolated app problem.
I have attached video recordings demonstrating the issue.
Looking forward to your response and improvements in upcoming updates.
