I wouldn't say there's no way to fix it, considering both of my Ephinea's and Destiny's PSOBB clients don't skip on the title screen anymore, even on first boot up. Unfortunately, I cannot remember what I did to fix the title screen music skipping issue. Though one thing I can always recommend to people is to go into their sound properties and turning on Exclusive Mode (on W10: right-click the volume icon in task bar, click Sound, click Playback tab, choose the source of your sound, then click properties, go to Advanced tab, then check both boxes under Exclusive Mode).
Doing this will fix a lot of problems for some older games that are not W10 native. I don't know if this will fix PSOBB on your PC, but it's still worth doing because it does fix a lot of sound issues with W10, in general, and I haven't come across any issues over the years in my experiences of leaving Exclusive Mode turned on.