Speed up your MBP.

[Dave in Wales]

Right or wrong, I reinstalled my OX S Yosemite, it worked wonders.

Pictures used to take an age to load, accompanied by the coloured spinning wheel, not now they load they load in a flash.

 

[Evren Carven]

How do you open your pictures? You may go to the directory under Finder and double click the picture to open it with 'Preview'.

 

[maflynn]

Pictures used to take an age to load, accompanied by the coloured spinning wheel, not now they load they load in a flash.

Load into what?

I've been using Yosemite and while not perfect I never had the issue you describe. It seems a clean install is the recommendation being issued quite often when running into serious performance issues.

Glad that you sorted it out though

 

[Dark Void]

Cool