Would it be worth your while to run your apps in an El Cap volume? I no longer have an El Cap volume. As a matter of fact, I don't even know how well CS5 would work in El Cap because I haven't used it since Snowy. I have been away from photography for about 2 years and am starting to get back into it.
Jon
macOS 11.7.10, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P600, Photoshop CC, Lightroom CC, MS Office 365
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