Hello everyone, this is my first post here and I'm relatively new to cycling. I've been thinking what is everyones top speed? mine been 45.5 kph and seems like I cant hold it at that speed even when I'm pushing with one leg and pulling with the other. I'm riding an aluminum bike (trek 1.2) with sora group, is there anything I can change to achieve faster speed? changing wheels? group set? wheel set? whole bike? or my legs

Also, those days I'm seeing a lot of dogs around, I'm sure that speed and time I keep the speed for won't be sufficient, right?

Thanks in advance everyone !