I have long given up trying to combat buffeting. One could spend a lot of money doing so, replacing screens etc. In your case you will get new mirrors. Hopefully they will solve the problem but there is no guarantee that they will. Nowadays I just make as many adjustments as necessary to screens etc to reduce the buffeting to a minimum, and then stick in my earplugs. Regretfully I adopted ear plugs too late in life to prevent the damage that has been done to my hearing. However in using them now I have at least ensured that things do not get any worse.