Ppsspp core freeze issues

I’m tying to play 3 games in the psp core that work perfectly in the ppsspp standalone emu. The games are Dragon Ball Z Shin Budokai, BlazBlue Calamity Trigger and BlazBlue Continuum Shift 2.

They all freeze in the core, in the moment you have to enter your name (in BlazBlue it is a couple of seconds after i tap on the game and in DBZ after you press start new game). Other games (Street Fighter Zero 3, Strikers1945, Guilty Gear XX) work without issues.

Could someone test one of these games? I know you don’t need bios or config files for the ppsspp core…am i wrong?