It is a known issue, that I reported some time ago:
And in another thread where I reported this issue, I said:
In my several years of very actively using KM, I have never experienced this issue until now. And I have always actively used the Switcher.
The same is true using the LaunchBar Clipboard History -- it is very fast.
@peternlewis, I know you like to blame MS Office on this KM issue, but the other app Clipboard Histories don't seem to have this issue. Please re-examine the method/code you are using to see if you can make it quicker. While I don't have any access to the KM code, it would seem to me that if you just load only the few History items displayed (5 or 6), then it should be much faster.
Thanks.