Is there a way to speed up glsl shaders in android rooted?

I have a root on my phone, is it possible to overclock the processor? It helps in something. My old phone has a gpu adreno 308. It works very well, but now I want to take full advantage of it.

Not within RetroArch. You could potentially do something like that using an external utility, and it would presumably boost your shader performance, but we don’t have anything like that built into RetroArch.

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I recommend flashing a kernel that supports custom CPU/Gpu governors. Try setting it to “performance”, and it’ll keep the frequencies at max. without fluctuating, thus providing the best and smoothest performance you can get from your device. This made tremendous difference for me when i was using Galaxy S2, S4 and Note 3.

Overclocking will probably not help much, if at all. Remember that some shaders are faster than others, so test them all.

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Thanks for the reply I will try all crt shaders I will also use this app EX Kernel Manager works very good

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Thank you for your interest