slow pure-python SequenceMatcher warning

When I add the skfdiff using

from skfdiff import Model, Simulation

I get the below warning

d:\python\python37\lib\site-packages\fuzzywuzzy\fuzz.py:11: UserWarning: Using slow pure-python SequenceMatcher. Install python-Levenshtein to remove this warning warnings.warn('Using slow pure-python SequenceMatcher. Install python-Levenshtein to remove this warning')

What is the problem?