The string 20150529r88 likely refers to a specific repacker’s build from around late May 2015. That version of Photoshop CC 2015 is now 9+ years old and lacks modern performance improvements (GPU acceleration, better brush engines, etc.).
is a legacy release of Adobe's professional raster graphics editor, originally launched in June 2015. The specific build identifier "20150529.r.88" refers to an early 64-bit iteration of this Creative Cloud version. Key Features of the 2015 Release adobe photoshop cc 2015 20150529r88 64bit repack
The 2015 update was notable for significantly improving design efficiency: The string 20150529r88 likely refers to a specific
This release introduced several major updates to the Adobe ecosystem: better brush engines