Maybe this food isn't up to par. |
English is full of phrases to say you're not good enough, or
it's not good enough. One of my
favourites is "not up to scratch or not up to par." (These are both golf related idioms)
examples
How is the chef's cooking?
It really isn't up to scratch/par.
I want to hire him, but his French isn't up to scratch/par
and that is an important part of the job.
If you're skills aren't up to scratch/par, maybe you should
take a course.