Hi guys, any idea why the screen refresh is so slow in SP, like 2fps. I have it installed on other devices and they are smooth. All functions are otherwise ok.

Model: Samsung Galaxy Tab 4 7.0 LTE (T235)
OS: 4.4.2 (stock non-rooted)
CPU: ARM Cortex A7 Quadcore 1.4Ghz
GPU: Mali-400MP
OpenGL ES: 2.0
SP: 2.37 or 2.35 same problem