Load time with Cubase slowed down after a new SDA was installed automatically

As the title said .
I realised i hadn’t installed all the content for GA and as soon as i connected to the SDA a new version of the Download assistant was installed and since then Cubase Loads sluggishly . Why ?

No windows updates ,the comps exactly the same as it has been since built but after visiting the Downloaded Cubase is sluggish , this makes it volatile just even visiting the download Center to see if there’s any updates . What gives ,this is rather annoying to see this .
I know a new Media bay was an auto download which sorted out an issues with GA (which i thank you for )but this has now upset a perfectly running setup ,as i say absolutely NOTHING has changed since building this machine with 12.0.52