I made impulse sequencer which generates 16 impulses where each next impulse goes with pause after the previous one.

Current pause rate is ~700us and 10 stages gives me 7ms. Last 16-th impulse stay high only after 11 ms!. This is a disaster. I can not deliver 100 Hz frequency on this rates. 50 Hz would be the good prize.

One workaround is to raise voltage from power supply