Why spend so much time in FMOD_System_CreateSound?

I read the data from the Wav file and then use Fmod_createsound to create the sound effect. I found that this method takes a lot of time, about 0.1s. Can someone tell me why? How can i avoid this?

code:
FMOD_CREATESOUNDEXINFO exinfo = { 0 };
exinfo.cbsize = sizeof(exinfo);
exinfo.length = (unsigned int)pDataBuff->size();

res = FMOD_System_CreateSound(FMODSystem,
(const char *)(pDataBuff->getPtr()),FMOD_VIRTUAL_PLAYFROMSTART | FMOD_3D | FMOD_OPENMEMORY, &exinfo, &pFMODSound);