Your benefits will be biggest in terms of monthly amount, the longer you wait to take them.
Unfortunately, because you are under your respective FRAs, you can not "suspend" your benefits until you are of your FRA age. If you stop them then, you can allow them to grow until age 70, to grow them by 32%.
Another option is if you filed for your benefits less than 12 months ago. If you did, you can ask to "withdraw" that application (one or both of you). It is like a reversal, but the down side it that you have to pay back all you have received. The upside if t his can be accomplished is that one of you can later, at your FRA, file a restricted application for spousal benefits only, while letting your own benefit grow untaken til age 70, then switch over to it. We can't do this if we have already taken our own, ergo the need to withdraw that application entirely.
Lastly, you can work under the age of FRA, such that you are not entitled to payments due to the earnings limit. If you can earn enough for that, they will stop paying you and at least until your FRA, those reductions in your amount will be reversed because even though you filed, you were not able to collect them. That will help reduce that 25-30% reduction your wife experienced and the 16% reduction from full PIA that you experienced.
I will be leaving shortly, but if you need follow up, I will check in later.