What systems are degraded by poor INS alignment?

[Temetre]

So theres ways to start the F-4 with rapid alignment, which limits the alignment process to 2.25 minutes, rather than 10 (or sometimes even 20) minutes for highest accuracy. (ignoring stored heading)

What systems would suffer from such a rapid alignment? Obviously the nav computer error becomes bigger, but the WRCS, Radar and sight are also all fed information from the INS; but its not clear to what extend those are hurt, if at all. From Zabu we also know that Pave Spike stabilization is worse.

 

Couldnt really find information about the effects of poor alignment from a short skim of the manual.