This article is from the WINE WINdows Emulator FAQ, by Dave Gardner firstname.lastname@example.org with numerous contributions by others.
When work on Wine is completed, programs should typically run at about the
same speed under Wine as they do under DOS and MS Windows. Currently,
there are debugging features built into each release, and this slows down
the execution of programs. However, these debugging features will be
removed for any post-development releases.