Usually the "help" given by IDEs can greatly reduce your typing speed. At least those that use point and click, or at require reading a list of options. If you

Usually the "help" given by IDEs can greatly reduce your typing speed. At least those that use point and click, or at require reading a list of options. If you know you want to type "for.bar(new Baz(qux))" and you have to wait for a menu after ".", after "new" and after "Baz(", the line mat take 6 seconds rather than one. Even if this is not an issue, most IDEs require you to know lots of keyboard shortcuts by muscle memory to be efficient anyway.