Actually, the glue plays quite an important role. If you lay the thinnest amount of glue (one layer on the blade, one on the rubber), and assuming it adheres properly, it might be ok but usually you can do better. In principle, you want 3-4 layers of glue, as an interface between the rubber and blade. What that does in increases 'dwell time', the rubber will 'hug' the ball for a fraction longer at impact, and from that comes real control.
But, if glue is too mushy, it will dampen too much and take away speed. If glue too rubbery, it will spin the ball very well, but dwell time will decrease. There will be little 'hugging' of the ball and your control margin becomes quite narrow.
What I do to mitigate that is put 3 thin layers of rubbery glue, followed by one layer of softer glue. That's only on the rubber. If that softer glue happens to be tacky, fantastic. Just lay the rubbers on the blade and it's ready. But since I finished that 'magic' bottle, I have to resort to putting an extra layer of glue on the blade, otherwise it won't stick. That's what everyone does basically, and it's ok. Some might have found a different formula that works better for them, or a particular glue that they like, but generally speaking they won't improve anything - just get a feel that they're comfortable with. This is just the gluing part. You can trick the rubbers too, but these things work independently of each other.
All these glues are exclusively water-based. VOC glues are not allowed anymore.