Your Expertise is Needed! Diagnosis this lady...!

This lady has been doing fine until 3 wks ago. I saw some mites on her and sprayed her down with a mix of spinosad and azamax. Did this for 5 days straight. Then added azamax to the water to treat systemically. Signs of those nasty mites are gone. However she is starting to yellow and lose leaves daily. Seemingly the bottom leaves for the most part, but there are some upper leaves being lost too (75% lower hanging leaves & 25% upper). I tested PH and its at 6.8. Soil is 707 from roots organics. It has been very hot outside 90f and is in full sun 75% of the day. She is still drinking water but not excessively. She needs a good haircut i know and i just bought a 100 gallon fiber pot and all new soil to give her a nice home. I am scared to transplant her right now given that she is showing stress signs. I looked for bugs and can't find any. I am very stumped to why this is happening. Any input or suggestions would be great!

Cheers,
Justin

I see heat wear on the leaves.. try build a heat shield using fabric that will let light in but not full emount just to shade them. Also the darkness of the leaves I think is due the what u used to kill off the bugs I had the same issue an used bug killer can't remember it's name but our leaves also got a Lil dark.. it will start to turn back to normal after a week or so.. run water in her for the next week to let any chemicals she took in from when you sprayed her.