Sentry's issue details page was experiencing slow loading times due to two separate requests being executed sequentially, resulting in response times of over a second. The problem was caused by the latest event component being a child of the summary component, causing the two requests to be blocked from parallelizing until the parent request finished. To solve this issue, Sentry made changes to load data from both endpoints higher in the component tree, allowing for parallelization and reducing the response time of the page. The fix resulted in a significant improvement, with the P75 response time dropping by about 1 second. By using performance monitoring tools, Sentry was able to identify the root cause of the issue and find a quick solution to improve customer experience.