Change translation to GSX600F

Has one done it before and has experience with it? Have a GSX 600F BJ.92 with 18000Km on the watch which is fast and powerful (for me) but too high turns. Original is front a 14ner pinion and rear a 45ger chainwheel with it does it though what it should but in my opinion with too high speeds. I wanted to go now on front 17 and back on 43 because it should probably bring a higher final speed which raises me less because I want with less speeds n reach the same speed. Have now only the concerns that I can no longer get away from the traffic light with this translation. The machine doesn’t have to be able to spin but it should also not fall asleep at the traffic light with its 90hp. I drive long distance and can’t turn it off so high.