Rest API Performance

Hello I am using the WooCommerce REST API trough the Bubble API Connector. I have performance issue. The WooCommerce REST API response time is around 600ms. But it takes more than 3 sec to be displayed in a Repeating group.
I have currently a hobby plan and I have tried a booster on the live environment site and the results are similar. Is there a way to improve REST API call performance ?
Thanks.