Thanks rsocor01 for the comment,

all I found was about 100Khz / 400Khz nothing that can run on the MSSP of Microchip 18F series.

same as I run with PBP3, Positron, Picaxe, I was interested to get an eeprom run at 1 Mhz from the Microchip AN989.

Using the MSSP Module to Interface I2C Serial EEPROMs with PIC18 Devices dated 2005

I figure that some of theses compilers will do the trick today in 2025

But no luck.

Maybe next year?....