Suggestion: Please avoid solely using words like "improvement" when describing a change in something being measured. Better to start with more direct language like "increase/decrease", at least at first, before indicating whether you assert this is an "improvement".
Thanks for the update.
Suggestion: Please avoid solely using words like "improvement" when describing a change in something being measured. Better to start with more direct language like "increase/decrease", at least at first, before indicating whether you assert this is an "improvement".