movies are made in 24 frames . some movies like avatar 2 , jemini man , they have high frame rate. so in movies streaming the frame rate is 24. that is a global standard. but in live sports 25 frames will hurt your eyes. 3- 4 hrs watching jittery stream is exhausting . jio 4k stream is much sharper compared to HD channel . but the frame rate and low bitrate make it useless to watch in tv
Well we r used to watch analogue ,digital tv channels in antenna ,cable DTH,C band, KU band Dish ... atleast i am used to watch since black and white tv channel in 12 inch TV.. so in OTT streaming i never faced or experianced of hurting eyes...always used watching in Heigh contrast Heigh sharpness Warm colour settings..now really enjoying in Sony Bravia 4K TV...
Hurting is dependent on viewers comfort only...