be slow off the mark
US /bi sloʊ ɔf ðə mɑrk/
UK /bi sloʊ ɔf ðə mɑrk/
1.
to be slow to understand, react, or do something
:
•
He tends to be slow off the mark when it comes to new technology.
•
The company was slow off the mark in adapting to market changes.