almost looks overwatered.........are you using some sort "moisture control" soil that hangs on to water? I read you have perlite and vermiculite in there....adequate drainage? Are you seeing roots come out the bottom? Her pot looks big enough in the photos.

Might just be too hot of a soil for her.....I have a Haze plant that looks pretty much the same (in soil) and I strongly suspect with my plant that the issue is overwater and too hot fertilizer for her.



Also consider something for root health such as Rhizotonic. It all starts BELOW the surface.