Comment 16 for bug 347307

>> On the latency webpage, did you also read the section about bypassing pulseaudio/dmix (-o audio.alsa.device=plughw:0)? Or do you perhaps do not use pulseaudio or dmix at all?

it also depend on the sample rate of the soundfonts in sf2 match with the sample rate of audio.alsa device

if the soundfonts are 44100Hz , you may need to change the defaults.pcm.dmix.rate from 48000 to 44100Hz

e.g. PA server use 44100Hz , so there is no need for resampling

The other factor is the size of the soundfont

fluidsynth: warning: Failed to pin the sample data to RAM; swapping is possible.