Graphic and speed error in NeoDS

[GBAtemp]

I turn to you to consult an answer in case there is one
Wanting to play the NeoDs emulator with the latest version of TW++, if I select the CPU speed to 133mhz the game runs smoothly but There are graphical errors, instead when changing it to 67mhz the graphics are perfect but it's the speed that fails, is there any way to play at a decent speed and without graphical errors?It should be noted that this is in DS mode (and the same in default mode) since when you start it in DSi mode it crashes

Source: https://gbatemp.net/threads/graphic-and ... ds.637224/