Ensure that the avastUI, Settings, Account, Account Setting are set to 'Report program status to the avast! account' this is a default setting, if this is enabled you might try reducing the Update frequency.
If these are set to the defaults and a change in the update frequency doesn't help then try Disconnecting the installed avast version on the laptop, avastUI, Settings, Account, Disconnect.
Then try reconnecting the installation - you might want to reboot and leave it a little while before doing this.