Limitations while using Copilot in MS Teams

With Copilot in MS Teams I face several limitations. Is it configurable?

1) Prompt related to my Outlook emails returns 10 messages max. Being asked, copilot says there are exactly 10 messages! But I can see in Outlook that there are many more

2) Prompt related to messages in a chart (summarize etc.) sets a time range (about month) and works only with messages posted within that range. I cannot extend it