The cup is ready. After vmtools is updated, linux is too slow!

The cup is ready. After vmtools is updated, linux is too slow! -- Linux general technology-Linux technology and application information. For details, refer to the following section. I started to install redhat linux9.0 In the vm Version 5.5, but I was not able to access the Internet. Today I downloaded the latest vm. After the vm is installed, I can access the Internet and use the nat connection method, A burst of joy. I was prompted below that the vm tools version is too low. Let me update it, and restart later. I didn't expect that the restart was too slow and the system was too slow, it takes a long time to open a terminal. I am so depressed. Does anyone have any solutions? Please advise!