MacOS – Macbook Pro 2015 Horrible Ping w/ Slow Download/Upload Speeds

Those are the full install images for both CS4 and CS5 applications. Presumably you'd downloaded them at some point to install. They can be deleted, if you have copies of the media otherwise.

If you purchased through Adobe.com, you can download those images again at any time.

WiFi signal strength only tells just that, the strength of the signal.

It is a prerequisite to have a good connection.

How ever that does not tell you about the Quality.

If you have high interference (from devices or Neighboring networks) then your RSSI will be high. It should be <70 or better (the lower the better).

Then there is the Transmit Rate value that will tell you the actual data transmit rate.

To look up all those values hold the option (alt) key while clicking on the WiFi Icon.