Hi guys, please help. I recently bought a used Samsung galaxy S10, at first everything was ok, but after a while I noticed that something was wrong with the speed of the Internet via wifi. I have 100 Mbps Internet at home, and on other devices, the Internet works well, somewhere around 100-120 Mbps, but on S10, when I do a speed test, it first rises to almost 100, then drops to 60-70 and fluctuates in this zone. This is not critical, the Internet, in principle, works, but still it is not pleasant to see that the speed is almost 2 times less than that which the router gives out. What could be the problem? Is there something wrong with the modem?