Apply some LIFTA waiting an extra day before your next watering… Imho, too high humidity per temperature she is given - your working on it and she is showing her appreciation for your efforts - simple as that.
Sure the leaf twist is an indicator of ph issues, there is some rust spots wanting more potassium though really green showing nitrogen excess…you could try to fix it all now though wasted effort as she looks to be ~3/4 way done now