I started learning c++ for a while and I made a c++ snake game. However, the screen refreshes too frequently, forming a dizzy gaming experience. I wanna reduce refresh rate of screen and make the game less dizzy and more playable, so how to achieve this in VS Code and GCC compiler?

Like above mentioned, I want to reduce refresh rate of screen to enhance gaming experience. I have searched multiple methods such as the usage of clock and some kind of stuff, but lack of experience to apply these methods into my snake game. Any kind responds and explanations on some details are pleased. Appreciate your patience to read my first question in stack overflow.