Added clarification comment when starting to look at improving performance, see https://github.com/phetsims/energy-forms-and-changes/issues/42
Added clarification comment when starting to look at improving performance, see https://github.com/phetsims/energy-forms-and-changes/issues/42

phetsims/energy-forms-and-changes,phetsims/energy-forms-and-changes,phetsims/energy-forms-and-changes