I've recently upgraded to Ubuntu 20.04 and have installed RStudio 1.3.1037
I'm finding the IDE to be really laggy. It takes a second between typing and the letters appearing. Selecting a menu option is slow (Closing the "About RStudio" window took 5 seconds)
The computer seems responsive in all other applications.
Any menu selection or attempt to load a file causes the CPU to max out at 100% on one core.
I'm not sure what additional info is required, but i'm hoping that this is a simple fix (a missing or outdated library for example).