Hi @kem104,
Per my research, I would recommend you to refer to following article to improve the performance of Loops in power automate. Power Automate Apply To Each Loops 20X Faster
Since our forum focus on SharePoint and I am not familar with Power Automate, I could only doing some research online. If my answer doesn't solve your issue, you could raise a new ticket in Microsoft Power Automate Community. This is a Microsoft forum dedicated to discussing Power Automate. You might get some more professional advice there. Thanks for your understanding.
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