There USED to be tweaks folks would do in XP, and maybe other versions of Windows, but to the best of my knowledge, this particular tweak was suggested by Cakewalk staff to NOT be done any longer, with Windows 7 or beyond in any case.
I believe setting it to background services was to get it to do streaming audio better/faster, but if I recall correctly it may adversely affect program performance and may not be needed or desired any longer.
Are you having some sort of processing issues? If so, please list any tweaks you may have done - and give an indication of whether or not your drivers and Windows are up to current maintenance levels.
Bob Bone