I love the simplicity of these types of things. It's a bit pricey, but things like this can save a lot of time. I built one specific to my needs, which integrates the key metrics I look for in both Stripe and GA:
This is awesome and I like it already because it's developed using Python. One more thing you're calling all of the Google API in a single view and I believe that will take quite some time to load. I have used htmx to solve this. After the page loads htmx will fire the API call to fetch the template response.
I do load the GA and Stripe data asynchronously via XHR requests. The initial load does take quite a bit of time. After that, I cache the results to the database and load from there first so subsequent loads are much quicker.