A: There are several approaches:
- If it is Android and you have device with 32-bit ARM CPU: download and install NEON APK which is using parallel calculations and thus is around 25-50% faster;
- If your device has 32-bit ARM CPU do not activate 64-bit Processing - 32-bit ARM CPU does not have NEON instructions for the 64-bit floating point math (ARM64 and X86 CPUs do not have such limitation);
- Use only necessary DSP.