Please, test and report. I couldnt find BLUS Patch 1.01 as it is removed. I just changed param and game id on BLES package to BLUS and resigned eboot although that wasnt necessary.
Your game must have original eboot and param. Let MM fix param for you. Install patch and run the game with disk in drive.
If you are online, then you will get asked for update 1.02. DONT UPDATE, click CIRCLE and game will continue to load.
This is original patch fix, not eboot fix. This was made long time ago by ASTEAM, and everyone tested said game runs smoother and faster. With eboot fix since it is modified, this maybe the reason why game loads so long. Maybe not structured properly. One byte can make a diff.
With patch 1.01 FIXED, your game files are intact and whole game is original, eboot aswell, so your game runs as it should. You must copy original eboot back and then install patch 1.01 fixed or you may not see effect.