Hi i know theres lots of posts on mercier kilo tts but i cant seem to find the right info. I have had a mercier kilo tt for 1 year now and i am looking forward to upgrading it to a better frame such as a Fuji track pro, bianchi concept, cinelli vigorelli, etc... I have upgraded many parts on my mercier already such as the wheelset, pedals and straps, saddle, bars, but i still have the stock (truvativ touro) cranks. I am looking to have a bike that will accelerate faster and be more responsive on the street.
So 1) Should i get a better frame and will it make a big difference in my ride?
2) If not, should i just upgrade my truvativ touro cranks to better cranks (omniums, sram courier s300 or sugino 75s)?

Thanks!