i did a test with LZMA & ZSTD result is :
Used Method : afr+srep:m3f+zstd:ultra:22:T1
Code:
FreeArc 0.67 (March 15 2014) extracting archive: forge_zstd.arc
Extracted 18 files, 2,012,040,342 => 7,460,454,400 bytes. Ratio 26.97%
Extraction time: cpu 735.30 sec/real 253.38 sec = 290%. Speed 29.44 mB/s
All OK
Used Method : afr+srep:m3f+lzma:ultra
Code:
FreeArc 0.67 (March 15 2014) extracting archive: forge_lzma.arc
Extracted 18 files, 1,901,738,484 => 7,460,454,400 bytes. Ratio 25.49%
Extraction time: cpu 913.78 sec/real 309.55 sec = 295%. Speed 24.10 mB/s
All OK
Game name : Prine of Persia [2008]