Reading from serial port

I am currently reading from serial port. My code is still rough and in script console, but generally does:

with system.serial.port ("COM1", bitRate=system.serial.BIT_RATE_115200) as port:
	line = port.readLine(1000)
	print line
	line_bytes = port.readBytes(30, 1000)
	print line_bytes

However just to read and print twice, the code will take about 10 minutes to execute.
Is this a typical time? Is there anything I could do to speed up reading from a port?