The spec sheet promised 90 frames per second. What the phone actually delivered, for the first four minutes of a match, was something closer to a rumour: bursts of smooth motion followed by a stutter I could feel through the glass more than I could see on the screen. I stopped trusting the frame counter after that and started timing the stutters with a stopwatch, the way I time rice on the stove.
Jakarta heat does not help. A phone that holds 60 fps indoors at 24 degrees will lose a third of that on a Gojek ride with the screen at full brightness. So I tested three mid-range handsets the same way: same game, same graphics preset, forty minutes each, an ice pack within reach but unused. Two of them throttled at roughly the same point. The third never throttled because it never got warm, which sounds like a win until you notice it was already running the game at a lower internal resolution.
That is the part reviewers skip. Frame pacing, not peak frame rate, is what your thumbs remember, and no box prints it. I keep the longer notes, screenshots and bench logs from these evenings on my review blog, updated whenever a new unit passes through the house.