R4 original freezes

Hello i have an r4 original on ds lite and i was playing yu gi oh 5d and the game lately starts freezing out of nowhere!! Dont know if its because of the cheats i used or i have to update to V1.19, or a simply format, buuut i dont know what do you think?

Freezing can be caused by a slow MicroSD. If it just started happening for no reason, then you should backup your files and format your MicroSD and restore everything.Otherwise you might want to update to the Ysmenu.
https://www.romulation.org/forum/index.php?topic=27617.0