Question concerning the Skill Points (SP) gained in Octavis Warzone Instance

As title says,



I wonder how to maximize the gain of Skill Points, also know as SP, in the respective instance cited above, since once for players of level 99 (and even for lower level players) has been surprisingly higher compared with previous chronic.



Currently on my level 99, I have gained between 5-7 million SP per attempt, in two parties.



So would like to know under what conditions I could increase this gain?

1) With Vitality Points a.k.a VP can influence?

2) With the use of SP runes can Influence?



Thanks in advance.