The number one cause of slow boot times is too many apps launching at startup. Go to System Settings > General > Login Items. Ask yourself: Does Zoom really need to open every time I turn on my computer? Remove everything except essential drivers (like Logitech or Dropbox).
This is the feature most users download the app for. mac reviver
Open Activity Monitor (Applications > Utilities). Click the "Memory" tab and the "CPU" tab. The number one cause of slow boot times