LCD SPI clock frequency with STM32L0 MCU
It's likely that the LCD can work at pretty much any SPI frequency, as long as it is slower than those conditions specified in the datasheet, they're all listed as minimum times. The 16 MHz quoted for the micro is a maximum frequency it can run at, it can also be slower if you desire.

It is fine to use these parts together, and to choose an SPI frequency which suits as long as you don't violate the conditions specified in either datasheet.