Power & Source of Big Ideas

Hi, i have NEO4 and it hangs....
i have official aluminium heatsink...
but i think the thing is overheating!?
Hi, i just got the NEO4 and compared to RPI its slow.. really slow..
im running FriendlyDesktop..
Have tested my SD card and speed is 30MB / s
can i somehow tweek this deviceso its faster!?
and CPU usage is pretty low
i try to login onto my device via VNC but all i see is gray screen..
Can anybody help me!?
Have google it and tryed 5 different xstartup settings but all i get is gray screen