Why PLzmaSDK is much more slower than LzmaSDKObjC

[woshiccm]

When I unzip a 7z file, PLzmaSDK takes about 20s, LzmaSDKObjC takes about 6s, why?

[OlehKulykov]

• Correct exception handling
• Full thread safe code
• Correct unicode <-> utf8 conversion
• Extra decode delegation args
• Mem secure path handling