Can the 240hz mode, from the game mode settings, be enabled globally instead of per app?

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Senior Member
Dec 2, 2016
I'm curious if I can permanently enable the 240hz mode without enabling it per app. The motion blur reduction mode ("240hz") should, in theory, sync PWM strobe frequency with refresh rate and thus create this effect, which should alleviate the eye strain issues some people have with OLED and their notorious low PWM frequencies (called multi-strobe PWM to be exact)
Are there any performance downsides, battery degradation or screen deterioation when using at lower brightness levels? I plan on using that mode, along with using the phone at 5-10% brightness when in-doors