WhatsApp issue on Android We have a whatsapp number dedicated for providing training to students all over the world. We have 13191 contacts saved in phone and there are 19103 chats in whatsapp. We also have 50 broadcast list. We are facing the following issues in whatsapp,

1) When we set status in whatsapp, it gets hanged. We need to force stop the app and then restart to use it again. It keeps happening when setting whatsapp status.

2) When we reply to any chat message, it takes around 5mins to get reached.

3) When sending any message in broadcast list, it takes around 10 mins to reach the contacts.

We are using android samsung tablet with a storage of 64GB and 4GB of Ram.

What to do to resolve the above issues?
Have you tried using web.whatsapp.com ? I find that using this method helps sometimes. Maybe also consider deleting the app's cache, and reinstalling the app from the google play store. Sometimes the app's cache gets fragmented.