[Performance] Stripe settings page load

[annemirasol]

The Stripe settings admin page has been identified in pcShBQ-2J3-p2 as having a slow response time.

During my initial investigation, server response was consistently > 2s on a bare JN site:

Part of the slowness looks like it's due to retrieving the merchant's account information from Stripe. We always do a fresh retrieve on page load, and cache the data for subsequent, same-request queries.

Next step: Investigate if there are further performance improvements we can do for this page.
Request URL: wp-admin/admin.php?page=wc-settings&tab=checkout&section=stripe
Context: pcShBQ-2J3-p2