I used Process Hacker: Right click on the process -> Priority -> Set the priority. You can do this manually, but I recommend using a program which will preserve the setting across restarts and for multiple instances.

Set the CPU priority for Python processes to Below Normal.

Set P圜harm's CPU priority to Above Normal.

What worked beautifully, almost perfectly: I also tried playing around with CPU affinities for the process, which briefly worked but not really. Turning off inspections didn't help at all, and I didn't have any special plugins that I recall. P圜harm takes less than 1GB of RAM for me, so that wasn't the issue. Solutions that didn't work: I have 16GB of RAM and was still having horrible lag. I found a solution to this problem that works beautifully on Windows, and wanted to share it. I have also contacted JetBrains regarding these issues, but honestly I tend to find nice solutions to common problems here and I thought I might as well ask Now look, I understand that diagnosing things like these is difficult without any sort of snapshot or more information about what is going on, but I am simply asking if anyone has ran into these issues before and if so, how did these get resolved? Mac OSX Lion running on MacBook Pro (mid 2010) with 8GB RAM The only way I am able to fix (2) is by going to P圜harm -> Preferences -> Python Interpreters -> Paths -> Reload List of Paths but I have to do this often enough to warrant asking about a more permanent fix. as well as some of the modules I import such as sys (these are the most common offenders :) ).

Often when I open a project P圜harm seems to flag all the built-ins as Unresolved Reference warnings.

Overall, its a little bit slow for my taste and I would love some tips on how to increase the performance of the IDE

It hangs unexpectedly and this happens often.

I'm a big fan of P圜harm by JetBrains but I do run into some issues that I thought maybe I'll ask here about.

Pycharm download mac