Making most of my graphics, I have used Corel software for years.
My personal rule of thumb is to keep my graphics less than 600 pixels in width for people with different monitors and abilities.
And I compress many of the graphics I post, more so now as the election nears and FR will be slowing.
FR has some new servers on order. Hopefully that will help with the slowness.
I’m using Corel PaintShopPro but there are MANY features that I have not tried.
One of these days I will read more than a page or two of the manual. :)
PS: I don’t recall having any trouble with the size of any of your graphics.