beblow is the test result on an Intel i5-7200U ultrabook

config	Parameters	FPS
sync_api.py	N/A	16.050873524801453
async_api.py	N/A	29.352513957879324
async_api_multi-threads.py	N/A	39.667721322205055
async_api_multi-processes.py	N/A	41.084748784333684
async_api_multi-threads_multi-requests.py	2	41.854912389218885
async_api_multi-threads_multi-requests.py	4	46.095173369691004
async_api_multi-processes_multi-requests.py	2	43.477770517034926
async_api_multi-processes_multi-requests.py	4	46.070958743063564
async_api_multi-threads_multi-requests_multi-ncs.py	2 1	60.313427342506766
async_api_multi-threads_multi-requests_multi-ncs.py	2 2	79.82939749065703
async_api_multi-threads_multi-requests_multi-ncs.py	2 4	87.53705811233776
async_api_multi-processes_multi-requests_multi-ncs.py	2 1	61.018100651765456
async_api_multi-processes_multi-requests_multi-ncs.py	2 2	86.02675250395884
async_api_multi-processes_multi-requests_multi-ncs.py	2 4	89.02194282781669

also the result on UP2 IoT dev board (Celeron™ N3350)

config	Parameters	FPS
sync_api.py	N/A	16.534288935980122
async_api.py	N/A	30.047453123836432
async_api_multi-threads.py	N/A	36.182525107032216
async_api_multi-processes.py	N/A	38.529989918532984
async_api_multi-threads_multi-requests.py	2	43.388968704276266
async_api_multi-threads_multi-requests.py	4	43.513101484307526
async_api_multi-processes_multi-requests.py	2	43.061900126219516
async_api_multi-processes_multi-requests.py	4	45.553271118272936
async_api_multi-threads_multi-requests_multi-ncs.py	2 1	58.006486187463274
async_api_multi-threads_multi-requests_multi-ncs.py	2 2	74.36024288188348
async_api_multi-threads_multi-requests_multi-ncs.py	2 4	78.56850835647774
async_api_multi-processes_multi-requests_multi-ncs.py	2 1	55.739910963474496
async_api_multi-processes_multi-requests_multi-ncs.py	2 2	77.52199693575577
async_api_multi-processes_multi-requests_multi-ncs.py	2 4	73.48973036182308