Here is a breakdown of the Connection Score values:
95+ | Great
Very unlikely that your Connection Quality is causing sustained significant or continuous degradation to your online gameplay experience. You may very rarely experience some moments of major or minor degradation.
80-94 | Good
Unlikely that your Connection Quality is causing sustained significant or continuous degradation to your online gameplay experience. You may rarely experience some moments of major or minor degradation.
65-79 | OK
Possible that your Connection Quality is causing sustained significant or continuous degradation to your online gameplay experience. You may sometimes experience some moments of major or minor degradation.
0-64 | Poor
Likely, your Connection Quality is causing sustained significant or continuous degradation to your online gameplay experience. You may often experience some moments of or continuous, major or minor degradation.