R Shiny / Flex Dashboard is very slow post running it

[grrrck]

Sorry, it's very hard to help without more detailed information about your application and data. It would be helpful if you were able to post a small, reproducible example (reprex). Please refer to this post for more information about creating a reprex for Shiny apps.

Shiny debugging and reprex guide

Shiny issues can be challenging to resolve relative to other problems with your code or statistical methods. Shiny apps are often large, complex projects with interacting files. When seeking help from others it is considered polite to: First, do your best to work through RStudio's debugging tools to diagnose your issue on your own. Often those shiny logs and tracebacks are useful to others trying to help out. Second, strive to minimize the effort required to replicate your issue. You can do this with a reproducible example ("reprex"). Shiny Debugging Errors in Shiny code can be difficult to track down. If you don't know where your problem is coming from, you can track it down with some o…