Original topic:

UI Performance Issue on Flagship Devices – Requires System-Level Optimization

(Topic created on: 04-05-2026 10:26 AM)
509 Views
ravimule
Active Level 6
Options
Galaxy S

Dear Samsung Team,

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 smoothly without 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.

Best regards,
Ravi

Flipkart scroll lag

Quick Share scrolling lags

8 Comments
iamrohitkm
Expert Level 5
Galaxy S
No issues in my s23 ultra
0 Likes
ravimule
Active Level 6
Galaxy S
It's there on all Samsung phones...
It's a core Samsung issue..
If possible, show me in a video.
0 Likes
Mr_nils007
Active Level 1
Galaxy S
This same issue s24 and i have complaint so many time but cant fix this issue.
ravimule
Active Level 6
Galaxy S
Every Samsung phone has this issue, brother, and the worse part is Samsung is not focusing on this. The same app works fine on OnePlus, Vivo phones, or with very minor lags.
0 Likes
581119
Beginner Level 2
Galaxy S
..Bc8Ocgciwd.jpgGrXZOWtJf0.jpg
0 Likes
Galaxy S
You were right ️ bro 👏 👏
cs_member10
Moderator
Moderator
Options
Galaxy S

Dear Samsung Member,

Greetings from Samsung Customer Support!

As per your query, we request you kindly share the log file. Also, share video clips and images for better understanding. This will help us to investigate further and resolve this issue.

Samsung Members Application (Open Samsung Members Application > Support> Tap on send feedback> Choose Composer> Select error report> select the appropriate issue category> Type your query and send.)

Note: To ensure relevant log information is included in the error report, submit the report within 3 minutes of encountering the bug or error, and do not terminate (swipe away) the Samsung Members application until you are notified that the report has been sent. This can take up to 5 minutes.

Warm Regards,
Samsung Customer Support

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ravimule
Active Level 6
Galaxy S
Dear Samsung,
It is disappointing to see that your response appears to be posted without thoroughly reviewing the details already shared. If you check this thread, you will find that I have already provided videos, and technical explanations multiple times. Simple thing need to do pick any Samsung phone and follow the steps shown in video still repeatedly asking for the same information only reflects a lack of attention and seriousness in handling user concerns.

As a customer who has invested over ₹1 lakh in a flagship device, I expect a higher level of support and accountability. This kind of response gives the impression that user feedback is not being properly reviewed, especially on the Members app.

This is not the first time I have reported this issue. If you review my profile history, you will see that I have consistently shared logs, videos, and detailed reports—via direct chat, community posts, and even beta feedback channels.

If user concerns are not being carefully read and understood, it raises serious questions about the quality of your beta program and support process.

Last time m requesting you:
- Carefully review the existing evidence already shared
- Avoid asking for duplicate information
- Provide a meaningful and technically sound response
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