Anyone using High Sierra with Adobe CS 5.5

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Ok... Reloaded my mid 2011 27" iMac with High Sierra and just migrated over the user data to see if it would fix my sluggish boot problems. Well, it did (However, recovering / migrating 500 GB of Data from an external Seagate USB was pretty horrific and took hours...)... I loaded my Propellerheads Reason software which appears to be working (a couple of services will not start due to Filevault I believe). I was having trouble locating my Adobe CS5.5 Standard Edition installation disc (but had my serial number) so I downloaded it from Adobe... Unfortunately, I keep getting a "Install cannot be opened. You should eject disk image." Error... Which is common from what I'm reading and it also has something to do with Filevault and there is a way around it. But, I did locate it this morning and will try to install from the "original" disk. From what I understand this should solve this installation problem (which is because it's downloaded)

That being said, anyone running CS 5.5 with High Siera ? This is my second computer (I use a 13.3" MBP running Siera) and I'm really doing very little Indesign, Illustrator or Photoshop work right now to justify $19.99 / month (Using a student discount)... Just wondering what my options are... ha ha... I'm about ready to just nuke and reload Siera on this machine for now...

Thanks.
Bill