Fastest Way to Convert Svg to Emf Repeatably Using Inkscape and Python

Python 3.9.0 Inkscape 0.92

I use Inkscape to convert SVG to EMF, however it takes too much time.

Simple example code

import subprocess

def convert_svg_to_emf(input_svg_path, output_emf_path):
    # This method takes ~1 seconds
    subprocess.run([
        "C:\\Inkscape\\Inkscape.exe", # Inkscape executor path
        input_svg_path, # Input SVG file
        "--export-emf",
        output_emf_path # Output EMF file
    ])

# Assume I have 100 files to convert
for i in range(100):
    convert_svg_to_emf(f"svg{i}.svg", f"emf{i}.emf")

# This script takes ~100 seconds

Although it depends on input files, but every single call of 'convert_svg_to_emf' takes at least few seconds. But when I try converting it from Inkscape directly, a output file appears almost immediately. So I presume 'opening' and 'quitting' of the application by subprocess.run charges most processing time.

Is there any method to make this faster?

My expectation

inkscape = open_inkscape() # Keep opening Inkscape app

for i in range(100):
    inkscape.convert_svg_to_emf(f"svg{i}.svg", f"emf{i}.emf")

inkscape.quit() # Quit the app after all work done

# This script conducts 'opening' and 'quitting' just once regardless of number of files.