Diagnose Screen-Capture App Slowdown

I’m running a screen-capture–based app on my Samsung S25 Ultra (Android 16, One UI 8.5) and the whole experience crawls—from the moment I tap the icon, through gameplay, right up to the ad-skipping mini-game. The only symptom I can name with certainty is plain slow performance; it never outright crashes or hard-freezes, it just lags badly enough that the mini-games become unplayable.

Here’s what I need from you: dive into whatever might be throttling the device—overlay permissions, MediaProjection API usage, background process limits, refresh-rate caps, GPU/thermal throttling, anything that could explain this universal slowdown. I haven’t run any structured troubleshooting yet, so you’ll be starting with a clean slate.(slow mode)(non rooted device)

Because I’ll be testing fixes live, I need quick back-and-forth. If I ping you while you’re online, please respond; voice calls in clear English are a must so we can walk through ADB commands, logcat output, or on-device profiling without typing walls of text.

Deliverables
• A concise diagnostic report summarising root cause(s)
• Practical, step-by-step remediation or optimisation steps I can apply immediately
• One follow-up voice session to verify the fix in real time

Acceptance criteria
• App launches within normal time (≈2 s)
• Frame rate stabilises above 55 fps during gameplay

If you’re comfortable with Android Studio profiler, Systrace, ADB, and Samsung’s Galaxy Labs tools, we should be able to knock this out quickly.