P: Increase the strength of the blur tool.

A stronger Blur Tool is definitely needed. It would be a shame to limit a tool's potential simply because it was intended for one specific use.

An option would be to add the functionality of a strong blur tool as a setting for the Mixer Brush. This would make the Mixer Brush more versatile, and leaves the Blur Tool as it is for subtle retouching, if that is how you want it to remain.

Corin, you should take Mr.Cox’ advice, you are not likely to get better when it comes to Photoshop.

And your claim is in itself pretty much non-descript.
Maybe check out
http://helpx.adobe.com/photoshop/kb/o...

Millions of users are running Photoshop without seeing it run slow. When we help customers who say it runs slow, we always find something on their system responsible for the slowdown.

Again, we'd like to help you with your slow system, but that needs another topic (because it is not related to this topic), and we need more information to help you track down the cause.

Actually, nothing is wrong with my system. Many people have said that your application is slow. Why do you argue instead of actually wanting to improve your product?

Ok, then something may be wrong with your system that is making it slow. But that would need a different topic to try and help you figure out why your system is so slow.

I am using large images but the program is still just too slow.

To be clear, I am talking about very small areas where I need to remove hard edges, not large areas.

Yes yes yes! If we want it to be subtle, we can make it suble on our own!!!

We want a stronger blur tool. We think it would be useful. That is the message. Is Photoshop for consumers or Adobe engineers? Corin didn't say "large area," he said "small spots." I often find that a stronger blur tool would be helpful, and other solutions are far more complex and time consuming.

If Photoshop is running slow, then either you are using huge images that take a lot of time, or something is not right with your system. Without more details, I'm not sure what might be wrong with your system.