NSW Liberals facing tough few months: premier

Gladys Berejiklian has told reporters she won't get distracted by what's happening outside NSW after Victorian Labor's landslide election win.

New South Wales Premier Gladys Berejiklian wants to slash migration numbers for her state. Source: AAP

Gladys Berejiklian says there's no doubt the months leading up to the NSW election will be "incredibly tough" but she's used to being the underdog and staying focused.

The NSW premier was speaking after the Liberal Party was trounced in the Victorian election on Saturday which saw the Labor Party returned to government with a majority of 16 in the 88-seat parliament.

Ms Berejiklian held a press conference on Sunday to announce extra police officers targeting drugs and gun crime when she faced a string of questions about what the result meant for the March vote in NSW.

She said she couldn't comment on the "various factors" leading to the result and she didn't know enough about Victoria's internal politics to be able to say how the ousting of former prime minister Malcolm Turnbull contributed.

But she said people didn't like to see instability or politicians focused on themselves, "and that's why in NSW we have a strong and stable government focused on delivering".

Asked if she was the underdog now, Ms Berejiklian said the next few months were going to be incredibly tough "and I've never denied that for a second".

"I'm used to being the underdog, that's me. I'm used to that. What I'm also used to is staying focused."