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Spec and warranty show it's not inferior, you get what you pay for.
Precursas are cheap because they are cheap, for instance their warranty period is 2 years (standard) whether LOOK is a whopping 5 years, including 1 years paint and finish.
Smaller stuff like the LOOK have a full carbon fork, about 200g lighter frame, have an accurate geometry chart (a rarity amongst Dolan), the only biggest disadvantage I can see is that it doesn't have tapered steerer.
Precursas are not even that strong, it's stiff but it's not uncommon for it to crack around the bottom bracket after being abused for so long, it's an entry level track frame.
Personally, the Cinelli Vigorelli HSL appear to be the better option, especially with the tapered fork despite having an alu steere.
How are the pre-cursas so cheap?
The Look 464 seems inferior, yet is much pricier - just because it's a Look?