In the proper box they wont lag . I played some techno when i had one for the short time in my truck an it kept up with it very well. The stuff you're asking bout it being peaky an the subs lagging all has to deal with the box. In your truck it might be a lil hard to get the proper size ported box for 2(depending how much space you wanna give up), so go with the recommended sealed box. That will yeild great sq an will generally be less peaky than a ported box.