Spark skill Issues

I am reporting this again, as I thought it might have been addressed by now, as I have reported this before.

Just played the Augury map cleared it, open the centre room and after opening the door the spark skill again has intermittent issues of firing out enough sparks to do damage, as soon as I pressed the mouse to fire off spark quickly as it should do, it slowly fires out the sparks and in this time the magic or unique mob 1 shot me with what looks like poison, as it was green and I am immune to chaos damage with all resistances maxed.

1st, being one shotted is not fun at all regardless of the issues I am having with spark, its hard enough levelling in the 90s to lose 2 bars over and over with there being nothing I could have done to prevent it.

2, Spark needs to be addressed, the skill relies on you shooting out the sparks quickly and filling the area, while running around the sparks seems to have periods where its not firing the sparks out, you can clearly see the lack of sparks filling the area, that's if its not sticking to the walls in clumps, as far as I am aware the spark is supposed to bounce of objects, not stick to them.

Could you please fix this issues, its becoming very irritating to lose bars because of being killed, after not being able to fire out this skill properly, the way it was intended to be used.