Mimosa x orange punch

She's a bit sad looking. Noticed a bit of calcium deficiency last week so started adding calmag to the nutrients. This deficiency looked to progress this week with rusty spots on leaves. So I made a CalMag foliar spray at 0.8ec. as of this update she's had two foliar sprays I also increased ph to 6.1 last couple feedings and have decreased light to 350ppfd and transplanted to 2.5l pot Things I should of done differently: Increased ec slower. I jumped up to 1.7ec very quickly. I also increased to 400ppfd too quickly. The new growth looks alright so hopefully she comes right