When Cropping a Photo the 2nd Monitor Function is Slow to Update?

Lightroom has always been very responsive but I notice with Lightroom 9.0 the 2nd monitor is slow to update if at all when I crop an image?

Does anyone else have this issue?

Thanks

Machine Specs:

Win10 64bit | ASUS X99-AII | i7 6850K @ 3.60GHz | 32GB Ram | GeForce GTX 1080