Honestly? Good. You don't need all those things, and it shouldn't be easy to reach peak augmentation. And when I say "you don't need all those things" I really mean it.
Especially things like Wired Reflexes and Synaptic Booster. Maybe you're still in SR4 mode where each level gave you a whole 'nother turn, but in SR5 they give you an average of 4.5 more initiative. That's two levels of it for one more pass on average. One level of it cannot give you enough of a boost for another action phase by itself, since the maximum of 1d6+1 is 7. Assuming you have a total of 13 INT + REA (say, 8 REA and 5 INT, requiring maxing REA as creation), and 3d6 dice from a +2 augmentation, then your maximum is gonna be 31 initiative. Your average would be about 24. While getting that third rating will increase your chances of getting that 4th action phase, it won't get you a fifth, and on average will not get you the fourth, and that's assuming you have a maxed out REA attribute and high INT as well.
You really don't miss out on much for not spending the money to give yourself that little extra boost. It's not necessary, so don't act like its price being high gimps cybered characters.