Need for speed the run, gameplay help

i have downloaded need for speed the run.
i find that when i play “the run” i finish the challenges too quickly.
for example some of the challenges in “the run” i can finish in one minute or only a few minutes.
is there anyway to make the races longer? like maybe a ten minute race in “the run”.
if i make the game level to difficult will the races be longer?
i find it annoying that everytime i finish and have to go to the next level it takes way too long, longer than the actual race itself. and the movies take too long too, is there anyway to disable those?
Answer #1
Isn’t there a choice of difficulty level when you start the game?
Answer #2
isnt the highest difficulty disabled untill I guess you complete the game first time?
Move off the noob level for sure
Answer #3
that still does not answer my question.
if i set it to highest, will the different “runs” allow me to race longer? like longer miles? because i realize that most runs are like 2 miles, and that’s too short. is there anyway to set it to like 10 mile runs or something higher?