Speedfight 2 issues

Hi all just bought a 06 speedfight for cheap today
Few things need advice on
Only side lights and main beam and rear light work (no brake lights indicators Horn) instruments panel lights up aswell

Previous owner says it doesn't feel like battery holding charge lasts 3 days then have to use kickstart

Also bike doesn't go over 20-30 mph feels like its constantly bogging previous owner messed with rollers etc might need up jetting as has a big filter exhaust and has had anew carb

Thanks I no it's alot but need bike to get to work asap

Yeah, try a new battery, and measure the charge.
Speedfights are a bit boggy if its still restricted.

Spoke to previous owner he says charge battery and everything works but seems as if batt goes dead after 3 days.. So am guessing it's not charging it
Also it's deristricted so guessing it's a fuel or roller issue