R36S CPU Governor: Performance Mode vs Battery, Tested
The CPU governor decides how fast your R36S’s chip is allowed to run. Set it to Performance and heavy games stop stuttering — in our God of War test the frame rate held at 20 instead of dipping to 14. The price is about 20% more battery drain and a noticeably hotter chip. Below: where the setting lives on ArkOS, what every governor does, and the battery settings that actually helped when we measured them (and one popular tip that didn’t).
Press Start → Emulator Settings → your system → Governor → Performance. To change every system at once: Start → Advanced Settings → Default Emulator Governor. On ArkOS 2.0 that default is already Performance — so if games feel slow, check that nobody set it to Powersave or Ondemand.
What a CPU governor actually does
The R36S’s RK3326 chip can run at 1.008, 1.2, 1.248, 1.296 or 1.512 GHz. The governor is the rule that picks one of those speeds, many times a second. Faster means smoother emulation; slower means less power and less heat. On ArkOS your choice also sets the graphics chip (up to 520 MHz) and memory speed to match.
ArkOS ships seven governors. Two menus show them differently: EmulationStation offers Auto, Performance, Ondemand, Powersave; the ArkManager tool lists all seven.
| Governor | What it does | Use it for |
|---|---|---|
| Performance | Locks the CPU at its top speed, 1.512 GHz. | PSP, N64, Dreamcast, NDS — anything that stutters. |
| Ondemand | Sits low, jumps to full speed when the load rises. | A middle ground. Under a steady game load it ended up at full speed anyway. |
| Interactive | Ramps up very quickly on any activity. | ArkOS uses it for the menus — you rarely need to pick it. |
| Conservative | Like Ondemand, but steps up slowly. | Light games; can cause hiccups in sudden heavy scenes. |
| Schedutil | Lets the Linux scheduler choose the speed. | Similar results to Ondemand in our test. |
| Powersave | Locks the CPU at its lowest speed, 1.008 GHz. | NES, SNES, Game Boy, Genesis — they rarely need more. |
| Userspace | A fixed speed set by a program. | ArkOS uses it internally for its Powersave mode. Leave it alone. |
How to set Performance mode on the R36S (ArkOS)
Per system (recommended)
- On the system list, press Start and open Emulator Settings.
- Pick the system that feels slow — for example PlayStation Portable.
- Highlight Governor and press right until it says PERFORMANCE. Press B to go back; it saves on exit.
For every system at once
Press Start → Advanced Settings and scroll to Default Emulator Governor. Every system left on Auto follows this value.
ArkOS switches to your chosen governor every time you launch a game, and back to Interactive when you return to the menus. That is why a governor set in the ArkManager tool (below) only lasts until the next game launch — use Emulator Settings for anything permanent.
What we measured
We tested on a 3.5″ R36S running ArkOS 2.0 (May 2026 build), at 50% brightness with WiFi on, reading the battery’s own current sensor. Each test started from a cool chip (65 °C) with nothing else running. The game test is the God of War: Ghost of Sparta title screen in PPSSPP, 40–60 seconds after boot.
| Test | Performance | Powersave | Difference |
|---|---|---|---|
| God of War — frame rate | 20 / 20 fps | dips to 14 / 20 | Performance is smoother |
| God of War — battery draw | ~878 mA | ~723 mA | Performance uses ~21% more |
| God of War — chip temperature | 83–85 °C | 69–71 °C | ~15 °C hotter |
| Light load (one busy CPU thread) | 676 mA | 632 mA | ~7% |
| Idle in the menus | 580 mA | 557 mA | ~4% |
Ondemand, Interactive, Conservative and Schedutil all landed between 556 and 560 mA idle and 689–703 mA under the light load — under a steady load they all climb to full speed, so for gaming they behave much like Performance.
Our test unit has its thermal limits raised for heavy PSP games (see our push-to-the-max guide). On stock ArkOS the chip starts slowing itself down at 70 °C, so in long, heavy sessions Performance will throttle back towards Powersave speeds once the console is warm. Keep the vents clear and don’t play it under a blanket.
The downsides of Performance mode
- Battery: roughly a fifth more drain in heavy games. In light games and menus the gap is small (4–7%).
- Heat: about 15 °C hotter in our God of War test. The back of the shell gets warm.
- No gain for light systems: NES, SNES or Game Boy games already run at full speed at the lowest CPU speed, so Performance only costs battery there.
Our rule: Performance for PSP, N64, Dreamcast and NDS; leave everything else on Auto or Ondemand.
Battery-saving settings — ranked by what actually helped
1. Brightness (the biggest win)
Start → Display Settings and Info → Display → Brightness. Going from 100% to 50% cut the drain by about 16% (690 → 582 mA) — more than any governor change in the menus. 20% saved another 10%.
2. Powersave governor for light games
Set light systems to Powersave in Emulator Settings, or switch live from Options → Tools → ArkManager → CPU Core Manager → Choose Governor. It saved about 18% in God of War — but cost frame rate — and 4–7% in light use.
3. Auto Suspend
Start → Advanced Settings → Auto Suspend Timeout. It is Off by default; 5 or 10 minutes stops a forgotten console from draining overnight.
4. Power Saver Modes (menus only)
Advanced Settings → Power Saver Modes (Disabled / Default / Enhanced / Instant) makes EmulationStation do less work while you browse. It does not affect games.
What didn’t help: switching CPU cores off
ArkManager’s CPU Core Manager can switch individual cores off, or drop to a single core. We tested 4, 2 and 1 cores: at idle the drain was 580 / 581 / 577 mA, and under the light load it did not go down at all. Unused cores already sleep on their own. Meanwhile PSP and N64 emulators use several cores, so cutting them makes those games slower. Our advice: leave all four on (Enable All Cores puts them back).
Which governor for which system
| System | Our pick | Why |
|---|---|---|
| NES, SNES, Game Boy / GBC / GBA, Genesis, Master System | Powersave or Auto | Full speed even at the lowest clock; save the battery. |
| PlayStation (PS1), arcade (most) | Auto / Ondemand | Usually fine; switch to Performance if a game stutters. |
| PSP, N64, Dreamcast, Nintendo DS | Performance | These need every MHz. See our PSP tier list. |
Want more playtime, not just more speed?
The HN-R36S-WiFi (₹4,899) ships on ArkOS with these menus, and our 3500 mAh spare battery (₹699) swaps in when the first one runs out. Free shipping, GST included, COD/UPI, 24–48h dispatch.
See the HN-R36S-WiFi Spare batteryPrices as of October 2026. Not sure which model? Book a free 10-minute video call or message us on WhatsApp.
FAQ
Is Performance mode an overclock?
No. 1.512 GHz is the chip’s stock top speed on the 3.5″ R36S. Performance just stops it from dropping lower. It does not raise voltages.
Can Performance mode damage my R36S?
The chip protects itself: on stock ArkOS it starts slowing down at 70 °C and shuts off at 115 °C. It will run warmer, so avoid covering the vents.
Why does my governor change keep resetting?
ArkOS re-applies the Emulator Settings governor at every game launch and returns to Interactive in the menus. Changes made in ArkManager are temporary — set it per system in Emulator Settings instead.
Does turning off CPU cores save battery?
Not in our test — 4, 2 and 1 cores drew the same. It does slow down PSP and N64.
My menus look different. Does this still apply?
These screens are ArkOS 2.0, which Hobbyist Nirvana units ship with. Other firmwares (dArkOS, ROCKNIX) name things differently, though the governors themselves are the same Linux options.
Related guides
Measured by the Hobbyist Nirvana team on our own test unit. Results vary with battery health, brightness, WiFi use and the game. Screenshots are from a real R36S on ArkOS 2.0.