too many nettop processes

[dfang]

System and Shadowsocksx-NG-R8 version:

• macOS 10.15.1
• Shadowsocksx-NG-R8 1.4.6-R8

[jonirrings]

same issue,
wakeup system after minutes sleeping, there are too many nettop process, that freeze my system.
temporarily revert to 1.4.5 to see whether the same issue.