While not knowing enough about your operating sysyem I still can't help but think that if you have all the patches installed the issue may be with your computer. With this said I was having similar issues until I took Mac's advice below:
Hey Danny--

You may find joy with one or more of the following tweaks on that old laptop:

*Change Processor Scheduling to 'Background Services'

Control Panel ->System -> Advanced -> Performance Settings -> Advanced -> and set Processor Scheduling to "Background Services".

Incidentally, this is a very good thing for anyone trying to run ASIO sound drivers to do also. ASIO is a Background Service. But now that we know that the Fast RealTracks loading is a Background Service also, it may just be one of the few tweaks we need to do in XP as a matter of course.

*Defrag the C: drive.
Do a Disk Cleanup first, then run Defrag. Ignore Windows when it says you don't need to defrag, just do it.

*Set your disk swap cache size manually

Control Panel ->System -> Advanced -> Performance Settings -> Advanced -> System Cache

Now select the manual setting where you enter your size and enter a size that is twice your physical ram size. W/768 ram, that would be 1536, okay to just round it to 1500 or any number near there. i doubt if it is a lack of ram. FWIW.

These teaks within my system made all right with my world of making music with BIAB 2010 again. Hopefully it will be as simple for you.

Later,

Danny C.
www.dannycampo.com
https://www.facebook.com/pages/Danny-Campo/379776252109306?skip_nax_wizard=true

The More You Drink The Better I Sound