My experience of changing the sprockets on my bike (Completely changed the bike)

I've had my bike (Pulsar 125) since a year now, one major issues that I've had with that bike is the lack of bottom end torque. The engine felt it's happiest only after 4k rpm below that it was dull and unresponsive and this was especially apparent double seat. The stock setup on my bike was 14 teeth x 44 teeth, which translated to surprisingly long gearing for a 125cc bike. Which was honestly unnecessary. Now with a 13 teeth front sprocket the gear ratio has gone up from 3.14 : 1 of the stock bike to 3:38 : 1 with the mods, which has made a significant improvement in acceleration and bottom end rideability at the expense of top speed. I saw a difference of 4-5 kmph per gear with this setup, earlier it used to top out at 82 in 3rd now it's topping out at 77 and that's completely fine for me. The 13 teeth sprocket is from apache 160 2v and it fits seamlessly on the older generation pulsars. It makes a word of a difference!