You can do a couple of things:
1) Try to overclock your system (do your research first, watch your temps and voltages)
2) Use the stable 3.5 version.
3) Post your settings so we can see them.
Also, what FPS are you getting? The crashing on HLE is solvable by the way. See the Dolphin wiki https://wiki.dolphin-emu.org/index.php?title=The_Legend_of_Zelda:_The_Wind_Waker#Black.2FGray_Screens :
I personally don't recommend using the "Fix Item Hang" patch.
1) Try to overclock your system (do your research first, watch your temps and voltages)
2) Use the stable 3.5 version.
3) Post your settings so we can see them.
Also, what FPS are you getting? The crashing on HLE is solvable by the way. See the Dolphin wiki https://wiki.dolphin-emu.org/index.php?title=The_Legend_of_Zelda:_The_Wind_Waker#Black.2FGray_Screens :
Quote:If you are experiencing the "black screen" crash after cutscenes, manually set the FPS limit to Auto or 60. This issue seems to be caused by a rapid FPS jump when the cutscene has finished.
I personally don't recommend using the "Fix Item Hang" patch.