phasor sync with gen~ patch.

Hello! I currently have a buffer being played by a phasor (the rtt.clock~ object you see) all within gen~. However when the transport attribute of rtt.clock and the switch attribute of gen @t playback are both on, the buffer is being played both by the impulse and by the playback gen~ patch at the same time. But this only happens below a certain BPM. The two instances desync depending on the length of the buffer. (Longer buffer = lower BPM). Why and how to stop. I’d like for the phasor ALONE to play the buffer. I’d still like to have the switch param to turn off the playback but not the phasor. Thank you!