Copy Editor (Beta) is an easy alternative to type text faster when you experience a lag while typing. All you need to do is to launch Copy Editor (Beta) as you type in the text box and continue to type in the new window, to avoid any lag.
Copy Editor (Beta) is an experimental feature which is available in limited geos and for limited users.
For more information, see Use the Copy Editor (Beta).
You can experience improved review panel workflows from within InDesign and resolve comments effectively.
For more information, see Manage feedback for shared documents.