So here is a fun tweak that will add a bit of spice to your lockscreen without slowing it down. The tweak is WatchNotifications in Cydia. This tweak is only a $1 but is well worth it seeing what it brings to the table. What WatchNotifications does is change the style of your Notifications to look like the Apple watch notifications. For me this tweak is definitely a new staple tweak that will be installed right after jailbreaking. 

So get to Cydia and check out WatchNotifications.