Once you get the pH fixed I'd recommend a cover crop or a companion in the soil that won't compete fir root space.
I personally prefer the slow method of pH fixing using crops that can fix the soil.
Garlic in my experience brings pH up a good amount. When I combined it with cilantro in the same pot they evened out at 7.6 pH when it went in anywhere from 6-7 pH depending on my tap that day. Once the cilantro established itself the pH lowered to 7ph flat.
Overall it's Just something to think about if you like to grow plants in general and not only cannabis. Plus Basil has a fun tendency to ward off fruit flies and fungus gnats. If you keep bananas open to grab as wanted in the house you likely have some fruit flies once in awhile to deal with.