So recently during a drive I pressed far down the gas pedal and the car didn't really take off as fast as it used to. It happened once and after a while it was fine but all day today it's been like that. Just not taking off as it used to. 140k miles, any tips?

 

Check for error codes with a code reader.
It can be the Accelerator Pedal Position (APP) sensor going bad, an iffy throttle cable which can be adjusted, a case of heat soak or bad cat.

Welcome to AZ.

 

Start with the simple things. How old are the spark plugs and air filter?

 

Manual or auto?

 

Automatic. I recently did an oil change, an air filter. It hasn't done it in a while