Bluetooth anomolie

Just to add the latest, Big Sur seemed to return to normal after a week of turning it off every night but El Capitan has gotten even slower over the same time.

I have transferred, via USB drive, the most important items on El Capitan to Big Sur and now trying to find out IF a restore from backup would possibly restore the system to usability. The major problem is that this is a dual boot system, El Capitan could not go on the limited internal HD so had to put 10.8 on the internal then load El Capitan onto an external 1T HD. Would the restore from backup cause both to be restored or, like what happened the last time, totally wipe my 1T drive just because I had used it as my backup before? This cost losing many years of backups because of that anomoly.

WGB

I sort of gathered that about 10 hours into that transfer attempt BUT that was not the question.

WHY did BOTH my machines act as if they are not using RAM for work storage?

AND, is there any fix for it.

I have run 'first aid' but everything shows good.

WGB

In other words, RAM is not emptying when I turn off my computers such that the SYMPTOMS remain every time I boot them after MISSUSING Bluetooth File Exchange on both machines? And yes, it is quite obvious that the computers are LOADING to my Backup Hard Drives when they are turned on for the boot procedure.

WGB

p.s. 43 years as Radio Communications operator (Radioman in military), 1983 AAS Computer Programming Scientific but using the OLD programming languages, Cobol, RPG, FORTRAN with BASIC (IBM 4400 mainframe) for beginning, 45 years computer owner beginning with Colico ADAM, moved to Apple II GS, Prisario (Mac), iMac Dome, iMac 20" flat panel, iMac 21" flat panel.

I guess I just, for some reason, am unable to get across what is happening which, on both computers, began just after doing a moderately long Bluetooth File Exchange on Big Sur and attempting that very long file exchange on El Capitan. Both computers were noticeably slower after completion or forced stop but expected them to clear after doing a 'restart' BUT no noticeable change on either one. Prior to those exchanges, both were close to normal for their age. I even posted on here a couple of days following the Big Sur slowdown but all I got was advice to get a new computer, but a little more diplomatically. Since these were both late t night, I closed out both of them overnight and after starting up the next day (Big Sur was several months ago) noticed as soon at I pressed the start buttons my backup drives began doing something and loading the OS was extremely slow. Also noticed that when logging in that as soo as I hit return the backup drive would start flashing doing something. Again, after loading something for internet access every time I press return the HD would go haywire doing something AND sometime it would take over a minute to access and load whatever I was doing.

BTW; The El Capitan computer is set up dual boot with 10.8 on the internal and 10.11 on an external 1T HD as there is not enough space on the internal HD for the OS..

I have noted that the 'graphic HD usage display' shows considerable 'unused' space on both the 4T (Big Sur Backup) and the 3T (El Capitan dual boot backup). Just for grins, I ran 'First Aid' and it reported no problems for either drive.

Mucho Gracias for all

WGB

Just going by all the posts on this thing I guess there is no resolution to this obvious flaw, BUG, in the Bluetooth programming. Now, if there was a way for this post to be 'Archives' along with several others.