You can file it and cold blue it.
First, you need to define "way low" as " X inches low" . Go to Dawson Precision's website and there's a calculator to tell you how much to remove, taking into account distance, sight radius and POI displacement from POA.
I can tell you that a commander size autoloader will change about 1" @ 50 feet for each .010" removed.
I use a set of calipers opened and locked at say .010". Use the open jaws to scribe a line on the face of the sight. File down to the line to remove .010" and test it.
If it doesn't work out to your satisfaction, at least you've learned something and you can go ahead and replace it.
Oops. re-reading I see you have a white dot. That complicates modification.
So, at the very least, get a set of calipers and measure from the top of the slide to the top of the post. That will give you your current blade height ... probably .200", .190". .180", etc. Then use Dawson's calculator to determine what new size you need. Then shop to see if anyone sells what you want. I'd start with S&W.