Slow Pickup Problem in My Hyundai i20

[Manishsanghi]

I have a hundai i20 sporz petrol from oct 2010, when i start car it need more race and after race it , its goes onlt 0 to 20 speed.if i break done at any breaker then speed goes on 0. On a hiway its speed not goes more than 40 at high racing
Please tell me tecnical sollution

 

[krishna6239]

A video might help is assessing your issue correctly. Was the check engine light on ?

From what you said generally these might cause the same issue as above-
1. Clogged Catalytic Convertor
2. Failing Tansmission
3. Low fuel at injection stage
4. Over used/thicker/high viscous oil
5. Weak Engine.
etc.,