My I-751 was supposed to be adjudicated in 7 months based on processing times, but it took 20.5 months.
And it was the case for almost everybody who filed around same time.
Same goes for N-400, only 2-3 years ago it was not out of ordinary to see a timeline like this:
Date Filed : 2022-11-10
NOA Date : 2022-11-10
Bio. Appt. : 2022-11-10
Interview Date : 2024-04-02
Approved : Yes
Oath Ceremony : 2024-04-02
You can browse here: https://www.visajourney.com/timeline/citlist.php?cfl=&op1=6&op2=&op3=&op4=71&op5=5,10,11&op6=All&op7=All
I'm not saying your case will take over a year @P055UM. Most likely it will take a lot faster. USCIS can always start processing cases slower without a warning though. So whoever gets scheduled for interview less than 6 months after filing should be considered lucky. I include myself in that list.
I wouldn't stress too much about wait. Being LPR is almost as good as being a citizen. Life shouldn't be on hold, unlike when you go through AOS and don't have EAD or SSN and cannot travel.