Lately something went wrong with R studio.
Everytime I create a plot (that can be a corrplot, a histogram etc) it shows as a little image, roughly 1/4 of how it used to be. It has not anything to do with the panel's dimension or with maximizing the plot window.
Below I provide an example:
The plot is smaller than the whole image and it is located in the upper left corner of the image instead of being at the center. Open the image in a new window to understand.
The .Rprofilefile is just a textfile with R commands.
So if the file contains the graphical parameters then just erase these lines.
The only problem is to locate the file(s). See e.g. https://rstats.wtf/r-startup.html#rprofile