Google Cloud SQL Performance - google-cloud-sql

Question

I'm surprised by the poor performance of Google Cloud SQL when I ran a sysbench on it. Here's the result from sysbench after setting the test run from these 2 commands.
sysbench --test=oltp --oltp-table-size=1000000 --mysql-host=173.194.225.xxx --mysql-db=test --mysql-user=root --mysql-password=MYPASSWORD prepare
sysbench --test=oltp --oltp-table-size=1000000 --mysql-host=173.194.225.xxx --mysql-db=test --mysql-user=root --mysql-password=96220751 --max-time=60 --oltp-read-only=on --max-requests=0 --num-threads=8 run
Sysbench Result:
OLTP test statistics:
queries performed:
read: 7756
write: 0
other: 1108
total: 8864
transactions: 554 (9.13 per sec.)
deadlocks: 0 (0.00 per sec.)
read/write requests: 7756 (127.83 per sec.)
other operations: 1108 (18.26 per sec.)
Test execution summary:
total time: 60.6740s
total number of events: 554
total time taken by event execution: 484.0527
per-request statistics:
min: 856.76ms
avg: 873.74ms
max: 897.26ms
approx. 95 percentile: 890.33ms
Threads fairness:
events (avg/stddev): 69.2500/0.66
execution time (avg/stddev): 60.5066/0.21
Can anyone comment on this result? I ran the test with D0 and D4 and I'm getting very similar result. Even the sysbench test from digitalocean shows a far better performance as shown below:
OLTP test statistics:
queries performed:
read: 358498
write: 0
other: 51214
total: 409712
transactions: 25607 (426.73 per sec.)
deadlocks: 0 (0.00 per sec.)
read/write requests: 358498 (5974.23 per sec.)
other operations: 51214 (853.46 per sec.)
Test execution summary:
total time: 60.0074s
total number of events: 25607
total time taken by event execution: 479.9015
per-request statistics:
min: 7.50ms
avg: 18.74ms
max: 48.85ms
approx. 95 percentile: 21.88ms
Threads fairness:
events (avg/stddev): 3200.8750/5.73
execution time (avg/stddev): 59.9877/0.00