Jumping to Older Messages

I have a chat with my partner on Imessage and I want to be able to view our first texts. But we likely have tens of thousands of texts. This makes scrolling through and pressing the top left/right of the screen to jump impossible because it would take hours. I’ve tried the search option but when you search for a message and jump to it, there’s a limited amount of messages you can view before and after the message you search for. Is there a way to fully jump into older messages without that limit so you could continue scrolling?