I've had the eero Pro's (1st generation I think?) v6.4.0-2092 for several years.  For the most part they have worked as advertised, until the last few months.  We have been struggling with poor performance (<25Mbp) and I am looking for some advice?  We have a relatively large home, approximately 4,000 sq. feet that is wired for ethernet on the 2nd floor and basement.  We are all wireless on the main level of the house.  Would the new eero Pro 6's wired the same as my eero Pro's provide greater performance/stability?