How to increase SPIRAM speed?

[StridingDragon]

I am running an ESP32 with embedded 16MB SOM SPI RAM in quad IO mode at 80MHz. However, the RAM is rated at 133 MHz and I have not found a way to actually run the SPI bus for SPIRAM/PSRAM at any frequency other than 40MHz or 80MHz.

Could anyone point me in the right direction how to go about doing this to get the SPIRAM running at its full potential? I have a very memory-intensive application that could certainly benefit from the faster memory access as the read and write times are currently throttling it entirely.

[WiFive]

80mhz is the max