Here is an idea on how to present the scale result of the PageSpeed leads report.

LEGEND

90-100 (fast)
Perfect score! Nothing to change

50-89 (average)
It's ok....it can be fixed & you can have peace of mind again!

0-49 (slow)
Mayday! Mayday! Contact us right now! You are losing visitors and business....and you might have significant security issues!