Hello,
High heat, light, humidity will definitely cause those twisted and pointy leaves, stunt the growth and sometimes kill the little ones. If its starts to get crispy or not continue to grow healthy green, you might want to just start a new one.
Give it time, Usually takes a week to notice any changes once conditions have been altered. The look of the damaged leaves may never get any better. Monitor new growth. Glad your temps are better. Cheers