I’ve used a mini pump after a flat - and although not quick I did not find the number of strokes / time to be an issue (inflated 700 x 40 tire to 40-50 psi *relatively* quickly )

also used a mini pump to inflate tires on a bike with low pressure - owner forgot to inflate before the ride - again no issue

for emergency situations I find the mini pump to be acceptable

BITD as a roadie riding 100 psi - preferred CO2 with adjustable inflator - but now with wider tires and lower pressure the mini pump is acceptable