Taglib is very slow on loading tags from about 1464 mp3 file

[Mohammad Sadeghzadeh]

I built taglib v1.12 using cmake and mingw in release mode and run
tagreader example. It takes about 45 seconds to read tags of 1464 mp3 files
which are about 5 GB.
I have those file on a HDD, windows 10, 16G RAM, with Intel(R) Core(TM)
i7-9750H CPU @ 2.60GHz 2.59 GHz processor.
When I open that folder containing those files, windows could read tags
very fast, but tag lib is too slower comparably.
I would be appreciate if you could suggest ways to boost the performance.
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