Your question is Real-Time Stock Ticker Performance. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Design a real-time stock ticker display system for a mobile app like Robinhood. How would you handle high-frequency network updates without degrading UI rendering performance or draining the device's battery?