[Troubleshooting] Memory, Storage, CPU all under moderate usage but still Laptop running sluggish

Hello members,
Memory, Storage, CPU all under moderate usage but still Laptop is running sluggish. Any suggestions to improve its performance. Advance thanks!!

You should check your temps of the computer.
If the temps are high you should clean it yourself by opening it (if it is not under warranty and you have the time and knowledge)
or you should take it to the manufacture service center or repair shop for cleaning
and reapplying of the thermal paste