Reducing CPU load with display driver?

[Porcinus]

Hi,
When using juj driver I encounter similar trouble but when activity on screen was 'low', if activity jump high, display fps was stuck to around 10 fps for one second then return back to normal.

A fix for me was to comment '#define SAVE_BATTERY_BY_PREDICTING_FRAME_ARRIVAL_TIMES' in config.h

Hole this may help