[CF]China /how challengemod/lower ping ?

hey ho guys
itz me and i have a question.....

i downloaded china cf and i just wanna know how can i make the challenge mode ?
and 2nd question is can i lower my ping ? normally i have 500-600 ping and i just wanna know can i reduce it ? just a question ^.^
*note im from germany*

*it could be nice with screens =)*

look for your ping use gameboostr prss thanks

kk i try it
and how challenge mode ?