What is the technical reason why enabling Freedome causes huge network bandwidth loss
Finally, I'm starting to be frustrated to Freedome as it is eating the network bandwidth. This has been the case since I've started to use it in late 2017. But now, the problem is even more disturbing as I upgraded my 350 Mbps connection to 1 Gbps one. Here are the measurement result from speedtest.net:
Disabled F-Secure Freedome:
Ping: 2 ms
Download: 845.12 Mbps
Upload: 94.83 Mbps
Link to results: https://www.speedtest.net/result/9946344738
Enabled F-Secure Freedome:
Ping: 16 ms
Download: 64.74 Mbps
Upload: 32.44 Mbps
Link to results: https://www.speedtest.net/result/9946352710
I've tested this with 3 different computers which all uses wired ethernet connection. The results are inline with above.
I've seen this same question in this forum, but not really a deep technical answer why this happens. I've read that MTU size might cause packet fragmentation with VPN, but what is your expectations that what is the performance loss if that happens with Freedome? What is actually suggested MTU packet size when Freedome is enabled? Any other ideas to try?