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e32401d5a0
The received data was already in stack buffer buf[1460], but was being copied into a std::vector just to satisfy the packet_() signature. E1.31 runs at up to 44 Hz per universe, so this caused ~44 alloc/free cycles per second per universe. Change packet_() to accept const uint8_t* + size_t and pass the stack buffer directly. This is an internal method so there is no API breakage.
