HOME key and END key hang Alpha (spinning wheel)

[Daniel F. <dfr...@gm...>]

Could anyone advise what might be wrong with my Alpha setup?

The larger the text file, the slower the HOME and END keys act.

In a very large text file, HOME or END will hang Alpha (spinning wheel).

ESC< and ESC> work fine no matter the size of the file.

Alpha 9.2.3
OS X 10.14.3 Mohave

no customization

In menu Alpha/Global Setup/Keyboard Shortcuts/Special Keys...
'Describe shortcut' gives:
       ESC< = beginningOfBuffer

       ESC> = endOfBuffer

       HOME = beginningOfBuffer
              findPrevious

       END  = endOfBuffer
              copyRegion