By adjusting the pH value, you should have already solved your problem. This looks like an iron deficiency, and with a pH above 6.5, the plant has difficulty absorbing iron. The leaves will still remain yellow. 😒 The plant can only utilize the iron while it's growing. It can't take it in now.
Since other trace elements can't be absorbed well either, the growth, quality, and yield will suffer, and the plant will be more susceptible to diseases.
It's best to treat yourself to Acti Vera from biobizz or something similar to compensate for the deficiency and ensure that the nutrients are still available for the final phases. 👌