I would add acid to get PH down to 3.5. the ph environment of 3.65 is great for bacteria development. mix about 10 grams of tartaric acid in a gallon of water. while monitoring the wine with a ph meter begin adding small amount of acid solution stirring wine as you go keep adding solution to desired ph of a least 3.5. if you are planning on MLF get ph down to 3.4 if possible. there will be a point were adding acid solution will not vary PH , this point is buffer point on wine.