Seems Battle.net also cause my Heroes of the Storm, SC2, and Spectrum Live to lag.
I did the following to also help with this issue.
Windows
- Close open Blizzard programs.
- Press Ctrl+Shift+Esc to open the Task Manager.
- Click the Processes tab.
- If agent.exe is running—or Blizzard Update Agent in Windows 10—select it and click End Process .
- Navigate to the folder containing the cache directory:
- Press Windows Key+R to open the Run dialogue.
- Type %ProgramData% into the Run field and press Enter .
- If a Blizzard Entertainment folder exists in the directory, right-click it and select Delete .
- Restart the Battle.net desktop app and relaunch the game.
I then set the update section of Battle.net back to default under settings.
Right now if I don’t launch Battle.net, I am able to stream Fox news on spectrum live with out lag and also if I close it before using SC2 or Heroes, I get less lag.