Halion 6 + other instruments slow to load in C11

Hi all, hope that you’re keeping well.

I’m currently using Cubase 11 and have a rather frustrating issue with loading instruments, namely Halion 6 and Halion sonic.
Halion 6 currently takes about 20 seconds to load the GUI, this happens in C11 but also in standalone mode.
I have a laptop with the same setup and this works faultlessly with the instruments loading in around 2 seconds.
I suspect that the issue is with the settings somewhere but don’t really know where to look. I’ve tried moving the Halion data to another drive but makes absolutely no difference. Is anyone having similar issues? or any advice?

Many thanks in adavance

Nick