Fiery Death support issue: explosion time is 2s, not 1s

I noticed Fiery Death support seeming more sluggish for map clear than it should have been on paper which led me to time the delay between the monster dying and its corpse exploding.

Attached is a short youtube video showing a breakdown of the clip highlighting the timings. The listed cast time on the support gem is 1s, the true detonation time is a full 2s following the monster's death. The timings match up for other Fiery Death explosions happening in the clip.

https://youtu.be/jgJ-4_bOCFg

If a suggestion is permitted, spell ignite mappers are very clunky at the moment, and having the Fiery Death explosion happen at the 1s mark as a baseline as advertised and letting this scale with player cast speed would be a very welcome fix and buff for spell ignite mapping builds.