Poor connection ofWhatsapp to cellular data

Whatsapp connection to cellular data is very poor. Messages are only updated only when I open the app. The updating takes long as the app displays 'connecting' for at least one minute before messages start flowing through. I have tried the disconnection of network and reconnecting, resetting network settings etc but those solutions are only very temporary. If I don't toggle the network off and on no messages will be received. When using Wi-Fi there are no issues. The network provider has no issues but whatsapp will not work in the background to update chats. The app is activated to work in background and connect to cellular data. This is now boring to always toggle the network I order to receive chats