I can't imagine very many women (those who've had a lot of sex) would even want a dildo as a substitute for sex with a man. The truth is that it is very difficult to have an cllmax with penetration only. The vast majority of women do not cllmax through intercourse. Although some women are able to cllmax in that way, it is usually through direct clitoral stimulation that they cllmax. Otherwise, it's a bit like expecting a man to cllmax by rubbing on his balls. It might feel good, but it's just not the right spot.
So, honestly, if you're a woman and you're getting horny, try a vibrator or your fingers. You can use those in conjunction with the dildo if you'd like to, in order to increase the stimulation and improve the intensity of the cllmax.
But thinking that a woman's cllmax is completely dependent on a phallic shaped object? That sounds like a man to me.