Fire mage, ~907 ilvl, ~500k dps, help please

[Chaeremon]

Hi all,
My raid team is currently pushing heroic ToS and the RL is asking for 700k min dps. I've been hovering at around 500k dps for the last couple of weeks and I'm stuck on how I can push it up more.
Logs:
https://www.warcraftlogs.com/reports/hTkK1jRtWxp4PzdL/" target="_blank
Keep in mind that this is still a fairly new raid tier for me, so I probably take a bit more damage/waste some movement than I would ideally.

Armory:
https://worldofwarcraft.com/en-us/chara ... /chaeremon" target="_blank

Talents:
Conflagration, Shimmer, Mirror Image, Flame On, Frenetic Speed, Unstable Magic, Meteor

On training dummys I can hit about 650k, 700k burst.

I use WeakAuras2, DBM, Quartz and MoveEverything.

I've watched a few guides and as far as I can tell my rotation is mostly fine. We have another mage in the team who is in pretty much the same situation, we're both hovering at around 500k.

Any help would be greatly appreciated!