Your bug report

#2963: 25.1; overlays may make emacs very slow

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 26051@debbugs.gnu.org.

-- 
2963: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=2963
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