git was deliberately designed around the "known fast" things in Linux. One of those is that path name lookup for certain file attributes is dirt cheap because

git was deliberately designed around the "known fast" things in Linux. One of those is that path name lookup for certain file attributes is dirt cheap because of the dentry cache. Since Windows doesn't have an equivalent, git is going to be slower there. Hopefully the Microsoft people working on this will find ways to make git on Windows faster, since even with a much smaller repo (LibreOffice), git is somewhat painful on Windows.