Tue Apr 23 2019 22:29:48 UTC
Performance is not a checkbox somewhere in Options dialog.
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ID Product Comp Assignee Status Resolution Summary Changed
57733 Tomcat 8 Catalina dev RESO DUPL ServletContext.getContext(String) always returns null for the root context ("/") 2015-12-30
One bug found.

as

File a new bug in the "Catalina" component of the "Tomcat 8" product