I am a first time Shiny user.
I recently deployed a fairly large app through Shinyapps.io using a free account. It got a lot of traffic (300+ users simultaneously) and promptly crashed. I've rewritten my code to run more efficiently, reduced the instance idle timeout time to the minimum (5 minutes), and reduced the instance load factor to 1%. All other settings are at the default, since I don't know what most of them mean. Even after these few changes it is still very slow to load even with minimal traffic.
Can anyone with more experience provide some insight? Are there more adjustments I can make to the settings? Or do I need to upgrade my account?