Hi!
If you want to generate a sawtooth wave in sync with your MIDI clock:
1) select your source
2) click the nuclear icon at the bottom to enter a formula
3) use this formula: midi.clock.sawtooth(1)
where 1 is the clock id as you see in the view/configuration and MIDI tab
If you want to generate pulses in sycn with the MIDI clock, the formula is: midi.clock.beat(1)
The pulse function you were using isn't synced with MIDI. It has its own clock.
To generate a strobe, select the strobe wave shape instead of the pulse. The strobe is synced with the DMX output and may not appear exactly right in the user interface as its refresh rate is different than the DMX output.