Not necessarily. An aura generated by an Ultima-powered title will be much more potent, due to the way that it’s written and the way the format works. However, that aura will fade much quicker, since most people don’t run Ultimas for long-term programming. The auras generated by Qv2 will take longer to generate and won’t be as potent, but will be much more ever present, since they aren’t as demanding on the body’s energy reserves and will become part of your natural aura due to you running the script long-term.
If you tried to run an Ultima-powered aura subliminal as long-term programming, you’d probably burn yourself out pretty quick.