Focal JMlab Alto Utopia speaker cable

I'd like to upgrade my speaker cables and my amp is Counterpoint NP100 hybrid amp. Currently I am using a pair of 12ft JPS Superconductor+ Petite, which is a bit too long and maybe too thin. I'd like to improve the dynamics and details.

I am thinking to get a pair of 6ft JPS Superconductor 3 speaker cables. How much differences are there between Superconductor 3 and Superconductor+ Single?

Are there other speaker cables I should consider too?

Thanks.