vehicle not get acceleration

Dear sir 
Thank you for trusting
Some common causes of car won’t properly accelerate : 

1. Air filter malfunction 
2. Fuel filter  malfunction 
3. ThrotEl malfunction 
4. TBS mal function 
5. Oxygen sensor malfunction 
6. Timing belt

1. Check the car on OBD II device to fined the malfunction code and you can send the code to me to determine the problem . 
2. Clean or chang air filter 
3. Change file filter 
4. Check the throttle and the TBS 
5. check the timing belt