The transition from Dalvik to Android Runtime (ART) has significantly enhanced app performance via JIT and AOT compilation. How do these techniques di

In Android, the transition from Dalvik to the Android Runtime (ART) has significantly impacted app performance. ART uses a combination of Just-In-Time (JIT) and Ahead-Of-Time (AOT) compilation techniques, both of which optimize how apps are executed on the device. How exactly do these two compilation methods differ in their approach to improving app performance, and what are the practical implications of using JIT and AOT on factors like app startup time, memory usage, and overall efficiency? Additionally, how do these optimizations affect devices with varying hardware capabilities, especially older devices with less powerful processors?