iOS 14.2 brings JIT compilation support, which enables emulation apps at full performance
You may know some unofficial iOS apps that offer some kind of emulation. These apps run based on hacks and exploits, which reduces performance considerably — but that’s about to change. Apple has silently introduced support for Just-In-Time (JIT) compilation on iOS 14.2, which will allow emulation apps to run at full speed on the iPhone and iPad.
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