May I recommend caching report results (maybe even page output) and displaying the same information if the report criteria has not changed in any way (or page input). Refreshing a page currently seems to run the report again which can be lengthy for long running reports (eg https://hello.doit-intl.com/customers/GETdYrTlNllKbWZNjvmb/analytics/reports/6jMIJDdWmipgAIGLDvdx)
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Cloud Analytics reports are now cached. If you run the same report within a 1 hour interval, it should be served from the cache.