Mac is running hot and the fan is load

• About fans and fan noise in your Apple product - Apple Support

https://support.apple.com/en-us/HT202179

• If the fans in your Mac run at full speed when you turn it on - Apple Support

https://support.apple.com/en-us/HT204463

• See how apps affect Mac performance, battery runtime, temperature, and fan activity - Apple Support

https://support.apple.com/en-us/HT203184

• Keep your Mac notebook within acceptable operating temperatures - Apple Support

https://support.apple.com/en-us/HT201640

• About Mac notebook batteries - Apple Support

https://support.apple.com/en-us/HT204054

• If your USB-C power adapter isn't charging your Mac notebook - Apple Support

https://support.apple.com/en-us/HT204652

• Apple Portables: Troubleshooting MagSafe adapters - Apple Support

https://support.apple.com/en-us/HT203207

Good luck & happy computing!🐌|🐢

Too many applications running at one time. For example having some News websites(which take a lot of space) open when doing other works on browsers(or just having a lot of tabs open). Having a lot of apps running at a time and/or it might be your hardware. If it is an old MacBook, it might have old refreshing rates and hardware parts. You could either buy a new Mac or fix the parts. Just try not to keep open the applications for too long. Force quit them by pressing 'command' + 'Q' to force quit the application directly, or 'option' + 'command' + 'esc' to select multiple applications. Note: This might happen when your battery is not charging either. When you plug in a charger and your Mac is in a low battery percentage( 2%-5%), your Mac will blow too much or air and anything you do will run very slow.

Hope this helps and sorry for writing soooo much!!😅😅🙂🙂