Latest version of unity is too slow

I have upgraded unity to Latest LTS version . This version is too slow. Everytime , I Play , pause,Stop in editor, It takes 10-15 seconds . Is there any solution or do i need a new system for this unity version?

In project settings → editor → enter play mode settings, if you tick the box going into play mode can be a lot quicker

here is a blog post from unity covering this