I've branched this to a new discussion and moved it to the Photoshop forum for you.
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You could use the new shortcut(s) Control-Command-F for "Re-Apply last Filter" and Shift-Conrol-Command-F for "Re-Apply last Filter with dialog"
or go to Edit>Keyboard Shortcuts>Application Menus>Filter and set Last Filter to Command-F
Just click on the existing shortcut to highlight the field, type in Command-F then press Accept.
See here for an explanation as to why adobe change it:
I have been using PS for years and this new update is TERRIBLE. It takes well over a minute to load on my homebuilt pc which has 32Gb of ram, a core i7 cpu and a pretty solid video card. I went through the entire list of "performance tips" and it did not change a thing. DO THEY TEST THIS STUFF?