"Here’s why Android can’t render its touch UI without lagging, according to Munn. In iOS, UI rendering processes occur with dedicated threads in real-time priority, halting other processes and focusing all attention on rendering the UI. . In other words, every time you touch your finger to your iPhone’s display, the OS literally goes crazy: “Someone’s touching us! Someone’s touching us! Stop everything else you’re doing, someone’s touching us!"
Why Android Will Always Be Laggier Than iOS | Cult of Mac
