Lenovo Ideapad Gaming 3 Fps And Cooling Problem

I purchased a Lenovo Gaming 3 laptop, and initially, everything seemed fine. However, soon after turning it on, I noticed it was blowing ice-cold air from the keyboard. While the FPS in games was initially good, I later experienced a drop in performance, and the cold air stopped coming from the laptop. I followed all the recommended steps, such as updating the BIOS and drivers, but it didn't solve the issue. After researching online forums, I discovered that this problem is related to the adapter. The one provided to me was 135W, although it should have been 170W, which is considerably more expensive. The issue persists regardless of whether graphics cards are present. I've tried both old and new versions, but the performance remains unchanged. Unfortunately, I've gone through four Lenovos, which I regret. It's been a year since the warranty expired, so I can't contact the support center. Why were we provided with a 135W adapter? Why were we subjected to this ordeal?