The phrase "a bit more professional" is correct and usable in written English.
It can be used when suggesting that something should be elevated in terms of professionalism or formality.
Example: "To improve our presentation, we need to make it a bit more professional by using a consistent format and polished language."
Alternatives: "somewhat more formal" or "a little more polished".
I hope not, I hope we're a bit more professional than that.
It's just looking after the body, being a bit more professional".
In a video to prospective investors, the Groupon chief executive looked a bit more professional, complete with slicked-back hair and a dark suit and tie.
The next morning, I decided to forgo my normal school uniform of sweatpants and a T-shirt for something a bit more professional.
"But it was a great game of football - loads of mistakes, loads of good attacking play, honest play but we've got to be a bit more professional at 4-1 I think.
"The U.N. has greater experience, so they will be a bit more professional," he said, but he added that the team may not be equal to the task of quelling violence by a wide range of disorganized rebel factions, as well as a military that has been internationally condemned for its response to the uprising.
"This has always been, and in some extent still is, a mom-and-pop operation, but I think we're a little bit more professional now in how we handle certain business matters, how we negotiate contracts with vendors and just the financial controls that we put in place".
It was maybe a little bit more professional but we scored goals at good times".
I don't think you could have such a thing as an hour or two session where everyone comes in and then leaves a little bit more professional.
Some students questioned whether medical professionalism could be taught at all in the formal curriculum with one student describing how it was not possible to leave a tutorial after one hour 'a little bit more professional'.
Everything I did had to be that extra little bit more professional.
