Launching ACR as a default from Bridge

Hi I have a new PC with the latest version of Windows 10. I subscribe to ADOBE CC for Photoshop and LR. I use an Olympus OM-D EM-1 Mark III which produces .orf RAW files. My PC is robust with 64 GB RAM, a 6GB GPU Invidia GeForce  GTX 1660, an AMD Ryzen 7 8 core GPU. All of the programs are loaded on to a SSD. 

Problem, when i click on an .orf file in Bridge it opens ACR but ACR operates so slowly that it is unusable. I have to open the file in PS and use the PS ACR filter from there and will not allow me to save the acr changes as an .orf file? 

My wife has an iMac that works just fine with the .orf files. They open in ACR, edits can be applied and saved as an .orf file. Not on my PC %$*$(#$@#@ Can anyone help me out?