I've noticed my laptop, XPS 9560, with 32GB memory has become a bit sluggish as I run a lot of virtualization on it but when I checked it is Premier Color that hogs a lot of resources. Diretcly after reboot I have it at about 15% CPU and 6-7GB memory.
It goes a bit up and down but the lowest is at about 10% CPU and 4 GB memory and the highest I've seen it gor is 40% CPU and 12 GB.
When I remember I just kill it after reboot and I haven't noticed anything not working after that so is it really needed any why is it taking so much resources?
DPC shouldn't need so much resources, but it is known to often have issues. They tend to start due to incompatibility with newly released Windows feature updates, and tend to get fixed about the time when the next Windows feature update ships.
DPC is mainly used for toning down the oversaturated colours resulting from using normal non-color-managed Windows programs with a wide-gamut display. You don't need DPC if using color-managed programs for anything color-related you do. Best if using a hardware calibrator and enclosed software (DPC must be removed for it to work). You can also extract the color profiles from the DPC program folder. You can also try toning down colors in the Intel graphics control panel.