getAllMessages and loadEarlierMessages : delays

[eaglenest-zz]

Im trying to get some messages from a chat.

When i invoke client.getAllMessagesInChat(chatId, true, false); it only returns 1 message per chat.
When i invoke client.loadEarlierMessages(chatId); and after that client.getAllMessagesInChat(chatId, true, false); it returns me 50 messages.

My problem is the delay, doing the second invokes, takes around 10-15s to return. If i do a third invoke, only on getallmessagesinchat continues to take me around 10-15s to return again.

When i open regular whatsapp chat and click on one chat, they have already some past messages, shouldnt those be returned on the first invoke right away without delay?

Best regards,