Samantha Stosur has endured enough frustration of late to know she can't take anything for granted at the French Open.

But the Australian 19th seed believes her persistence through 2014 form struggles could be paying off heading into her second round match against Austrian Yvonne Meusburger on Thursday.

A ruthless and efficient Stosur produced her best performance of the season to thump Puerto Rican Monica Puig 6-1, 6-1 in the first round at Roland Garros on Tuesday.

On that form she will be heavily favoured to also see off world No 38 Meusburger, a fellow 30-year-old with a 7-19 grand slam win-loss record.

But Stosur is treading cautiously.

"I'm not going to take anything lightly," Stosur said.

"She [Meusburger] has been a pretty solid 30-40 ranked player for quite a while now."

After failing to string together back-to-back WTA wins for almost four months after reaching the third round of the Australian Open, Stosur felt she turned a corner with a handful of encouraging performances at recent clay court events.

When times were tough, Stosur resisted making any radical changes to her training regime.

"You've got to stay positive and keep practising and keep doing the things that you know work for you," said Stosur, who has a 16-12 record this season.

"I guess that's what I've been able to do a little bit better the last few weeks and why I felt more comfortable.

"I enjoy playing here. I feel comfortable on these courts so walking out there, you feel good."

Stosur reached the last four at Roland Garros for the fourth time in 2012 but repeating that feat will take something special this year.

Should she beat Meusburger, her path to the semi-finals would likely feature Australian Open runner-up Dominika Cibulkova, 2012 French Open champion Maria Sharapova and 2013 winner Serena Williams.

All three had comfortable straight-sets wins in the first round. AAP