[Elecraft] QSK and the K3

[Bill Stravinsky via Elecraft]

When I first got my K3 in 2009 I thought the QSK was fabulous and used it every so often.  Then for a few years I was working too much and wasa little inactive.  I finally retired and heavy into ham radio once again.  I got the KXV3B for the preamp and had to jump from version 3 somethingmcu to version 5, and now have version 5.29.  Has anybody else thought the QSK  to be "slower"?  I am performing some tests recommended byElecraft to see if I have a problem but am looking for opinions from other users.
Bill K3WJV