There are too many startup items.
When installing the software, don't forget to uncheck "Auto Boot", which can greatly improve the boot speed.
Junk file accumulation
When the computer is used for a long time, junk files will inevitably pile up and occupy a lot of memory. Remember to clean it regularly to keep the computer in the best condition.
Insufficient disk space
Use Tencent Computer Manager and one-click slimming system disk to release more space.
Low hardware configuration
If your computer has been used for many years, you may need to update or upgrade your hardware.