Android box 50/60hz

Hi everyone. I have an Android box for retro gaming. It works natively in 1280x720 60hz resolution but also it’s possible to switch to 1280x720 50hz. As far as i know my TV works with both 50/60hz (refresh rate changes automatically and TV shows what resolution and Hz is in an actual moment). I’m playing only PAL games what some of you may consider pointless but nostalgia is nostalgia and I prefer this way. I want to ask will be better to change resolution to 1280x720 50hz if I play only PAL games? Small info: I haven’t noticed any screen tearing. Maybe because my TV works with 50hz and doesn’t need to duplicate frames up to 60?