Well there's four ways to get newer ROMs working.
A - New firmware.
B - Alternate firmware.
C - Patches for the ROMs.
D - A new cart.
If A is out of the mix, your next bet is alternate firmware (instead of the official). YSMenu is a popular "universal" firmware, but last I checked it hasn't been updated since earlier this year, so it wouldn't play later games with new AP. You can perhaps try Wood, that's made for R4 carts, but it doesn't run on most R4 clones (and yours is a clone).
Gotta' run, I'll leave somebody else to finish this.