[android-studio] ADB.exe is obsolete and has serious performance problems

This is an years old bug.

Check your adb version like this : (the adb path is given with the error itself)

C:\Users\<your_user_name_>\AppData\Local\Android\Sdk\platform-tools\adb.exe --version

output :

Android Debug Bridge version 1.0.41

Version 29.0.4-5871666

Installed as C:\Users\sunil\AppData\Local\Android\Sdk\platform-tools\adb.exe

It means this adb comes from the latest sdk platform tools 29.0.4. Check the latest version from official site here.

If you already have the latest version of ADB installed, and still getting the error, this is a known issue. Google hasn't yet provided any other ADB. Click on the "never show again" option and continue.