Why does Wi-Fi brake and lag on the ASUS laptop (Windows 10)?

For the last few days I’ve been experiencing problems connecting to Wi-Fi through my laptop. The internet literally every minute starts to slow down and lag, sometimes to the point where I have to reconnect to the network.

It is especially noticeable while watching videos (videos load slowly) and during active correspondence (new messages arrive and are sent with a delay). The signal is strong, on the phone and PC, to which the router is connected, there are no such problems, everything works perfectly. I have an Asus laptop with Windows 10, and previously had problems with wi-fi on it.

This is a very unpleasant problem, I hope you will suggest a solution, because this is the wording I could not find :<.

Response

Since the problem is very ambiguous, I can’t give any specific advice on the solution. Besides, there are a lot of points in your problem that are very unclear to me. Please clarify in the comments:

What have you already tried to do to solve these Wi-Fi issues on your ASUS laptop?
What is the model of the laptop?
Has the Wi-Fi worked fine before? What exactly did you do last time according to my instructions?
Did you download and install the driver from ASUS website specifically for your laptop?
Check your internet connection speed and attach the results in the comments. Check when there is a download problem and when there is not.
Is the problem in different browsers?
Is it the same problem with other Wi-Fi networks? Need to check.
Does reconnecting to a Wi-Fi network solve the problem for long?

Try the following:

Disable antivirus (if installed).
Reboot the router.
Prohibit disabling the Wi-Fi adapter on your ASUS notebook.
Delete the Wi-Fi adapter in Device Manager and reboot the laptop.

Such problems with Wi-Fi lags are not only on ASUS laptops. Not rarely it is due to hardware problems with the Wi-Fi module (the board inside the laptop).