Hey guys!
I have found a way for your personal records to be deleted, however I MUST WARN YOU that this one and only method will delete EVERYTHING (your rank, your ships, and all your progress in MP and SP), so I advise you to platinum this game first! To delete your personal records you simply have to delete the Wipeout icon from your Vita and install it again and the updates. All your feisar prototype personal records that you have NOT beaten will get deleted and you can get in the global records. Your lap records that are not feisar prototype will remain.
Also make sure you sync your trophies first before deleting the icon.
Cheers, and i hope to see new and familiar names at the global records!

PS. I have done this method myself and you basically lose nothing, rank is useless to me as I had platinum the game and also you can just redownload your online code from psn.