Can you explain those terms with a non-specialist language?
LLE just runs translates the native code and is the traditional way of emulating. HLE in contrast attempts to simulate the response of the system rather than accurately recreating its internal design. HLE rewrites functions using native c/++ code, and then hooks into calls to that function, and runs the HLE version instead of the native code.
Instead of trying to accurately create or recreate the hardware gate by gate, in HLE a software platform is created on which the emulated code can be run in a host computer having different hardware and a different instruction set. The effort focuses on recreating the appropriate
functionality provided by the system emulated. Thus, the emphasis is shifted from the most efficient
method of processing data to getting the same (or comparable)
results as if the native platform was used. By contrast, the traditional way of emulating is termed. HLE also does not require a console's BIOS file in order to run.