How many times does Ophanim orb hit per second?

While wynnbuilder is showing total damage, I can't figure out dps from it..
I might need to calculate it manually so I need this info

 

I tried doing some testing and I think its about 1 orb fires per ~0.2s. Definitely somewhere in the 0.2-0.3s range. More orbs doesn't seem to change the attack speed, it just extends the total duration. So assuming an orb fires at 0.2s, max Ophanim w/ Divination would last 1.2s, and at 0.3s it would be 1.8s. Based on my testing (lag sometimes kicked in) I got around the 1.4-1.6s range on average. (note I manually timed this so it may have human error but I did multiple tests)

 

Does an extra melee interrupt the cycle? (Does this mean vslow and sslow are optimal attack speeds?)

 

While I can't say much for exact timings or the use for specifically 2 orbs or basically anything under 6.
I can say though with 6 orbs Vslow and Sslow are preferred as performing another melee will reset the cycle.
On one hand in my testing spam clicking resulted in slightly higher dps compared to waiting for all 6 then restarting the cycle (excluding the obvious increase in melee damage) however, this results in only using 1 to a few orbs depending on your attack speeds causing those to rapidly drain in health and to my limited testing spam clicking even with a slow speed (probably effects faster even more drastically) makes healing back those orbs near impossible if you rely on orphion's pulses to heal for max.
Could be different with base heal or fast spam heal casts if you dont care about the full 3 pulses but if you do orbs die quickly.

 

Yeah, spamming melee will interrupt the previous cycle. I think very slow is slightly too slow and slow is slightly too fast, so slow attack speed is probably the better option as long as you don't spam melee, and it's a lot easier to build up Winded too. So I would say Slow Attack Speed is probably the most optimal choice