Don't know for sure what is going on with this plant, but liquid kelp and sometimes a little sea90 mixed with water and sprayed on the leaves, rock dust watered into the soil and a good slow release fertilizer dosage and perhaps some worm castings always seems to get my funny looking fig leaves straighted out.
I've had some trees that looked like they had fmv do a turnaround after the above treatment and look 100% better.
So my suggestion is if water is sufficient, and the soil type is correct, and sun exposure is sufficient, something could be missing nutrient wise so make adjustments there to see how the plant responds.