Rey is OP. I think that might be the point.
Compared to who?
Luke who took down a Death Star the first time he got into an X-Wing in ANH? Anakin The Chosen One? Obi-Wan the incredible mind-bending ninja dance fighter? Kylo Ren who holds a blaster bolt in mid-air without breaking a sweat?
Yoda? *facepalm*
All Jedi are overpowered. Protagonist Jedi are especially overpowered. This is true in every single movie. It's practically a Star Wars requirement. Rey is quite possibly the least stupidly-OP Jedi protagonist I've watched. Look at the evidence:
She's established as a kickass survivalist, fighter and pilot from the get-go, where Luke went from unskilled whiny brat to amazing fighter pilot in a single movie. Luke's so much more believable amirite?
Luke's story is a great one and he's a great character, but he's definitely OP by the end of the first movie. Rey fights with her lightsaber like someone who's good at stick fighting, it's pretty realistic.
When Kylo Ren sets up a Force link between them, she senses what he's doing and tries to reverse it on him, getting some weird confused flashes from his mind. That's pretty typical coming-of-age trope for a wizard/mental powers stories. It doesn't give her any obvious power upgrades, summon help, or do anything other than scare off Kylo Ren. Logical, not OP.
She uses a single mind trick after she's had an extensive demonstration of Jedi mind powers, and is also majorly motivated by fear for her life. Anakin was doing probably-Force-suggestion stuff at younger ages and with less provocation.
Rey's skills flow logically from her characterization and backstory. She's a hero going on a hero's journey and there are things that come with that, like being or very quickly becoming highly skilled. That's just a feature of this type of power fantasy.
Rey's weaknesses also flow logically from her backstory in TFA, so I expect we'll get the hero's journey of awesome-fighting-person-learns-to-feel-emotions-and-handle-abandonment-issues, instead of Luke's journey of emotional-person-learns-control-and-decisiveness. But that's a slightly different discussion.