-wimlib (and wimlib-imagex) can create XPRESS or LZX compressed WIM archives.
-Currently, the XPRESS compression ratio is slightly better than that provided by
-Microsoft's software, while by default the LZX compression ratio is approaching
-that of Microsoft's software but is not quite there yet. Running time is as
-good as or better than Microsoft's software, especially with multithreaded
-compression, available in wimlib v1.1.0 and later.
-
-The following tables compare the compression ratio and performance for creating
-a compressed x86_64 Windows PE image. Note: these timings were done on Windows
-7 so that the times would be fully comparable; however, wimlib-imagex may have
-even better performance on Linux.
+wimlib (and wimlib-imagex) can create XPRESS, LZX, or LZMS compressed WIM
+archives. The following tables compare the compression ratio and performance
+for creating a compressed x86_64 Windows PE image with XPRESS and LZX. Note:
+these timings were done on Windows so that the times would be fully comparable;
+however, wimlib may have even better performance on other operating systems such
+as Linux. Timings were done with 2 CPUs available, both of which automatically
+are used by wimlib for both XPRESS and LZX, and also by imagex.exe but
+apparently only for LZX.