Glad to hear that you got it working!
Yes, getting a high and stable framerate makes a huge difference when it comes to control.
For others who might want to do the same thing:
For the standalone windows version that is available here on Itch, the best method is to create a shortcut and add the command line parameters to that one.
On Steam, the most convenient way is probably to set game launch options directly in your Steam library, here's how to do that:
https://support.steampowered.com/kb_article.php?ref=1040-JWMT-2947&l=english