I installed the new Rstudio 1.0.44 on Windows 7 64 bits. I also upgraded to R 3.3.2 at the same time. Now, rendering of complex ggplot figures is taking a lot longer than in previous version. Problem is quite noticeable when using transparency (alpha) parameters.
I've also getting plots have rendered and getting the following warning:
In names(gp) : reached elapsed time limit
It seems like the the issue was caused by the git version control. When disabled in the options, the issue disappeared.