Large Image Sizes Taking 20+ Minutes to Import

Hi -
We license artwork from agencies for use as cross stitch patterns. They typically send us TIF files that are 100-300+ mgs in size. Using a brand new top of the line gaming laptop, it took Cross Stitch Professional Platinum 20 minutes just to import a 154 mg file.
Is there anything that can be done to improve the time it takes to import large image sizes, short of reducing the file size - and thereby reducing the image quality?
Thanks.
Betsy
We license artwork from agencies for use as cross stitch patterns. They typically send us TIF files that are 100-300+ mgs in size. Using a brand new top of the line gaming laptop, it took Cross Stitch Professional Platinum 20 minutes just to import a 154 mg file.
Is there anything that can be done to improve the time it takes to import large image sizes, short of reducing the file size - and thereby reducing the image quality?
Thanks.
Betsy