Hi,
it sounds like some notification from any competitor who tries to persuade users to uninstall our products. I won't be name the company, but we have experience with one "battery saver" competitor's app, which on and on is faking that Avast apps are eating battery a lot. When you go to system settings/battery usually you even do not see our app listed there, because it has low consumption.
Have you got any idea what app (probably some battery saver) does this on your device?
Thanks!