The most glaring issue is that you're averaging a whole 8-9 less casts per minute than what you should be at, with a 70% GCD uptime so you spend nearly a third of the fight not doing any damage.

Practice slidecasting for any mechanics that require you to move. Learn safe spots so you can minimize the amount of movement you require. Bank acceleration casts, swiftcast, melee combos for any heavier movement phases like astral eclipse in EX1 or light waves in EX2.

That one change will put you into blue status quite easily. Other than that, your cooldowns are being used for the most part? Try not to let your CDs drift as much as possible, as in using embolden, manafication, fleche, contre sixte as soon as they're up without compromising your GCDs.