OpenVPN disconnect triggers latency spikes on all other interfaces

[mavor]

I have OpenVPN client setup as a gateway.
http://chronicgeekage.blogspot.com/2019/02/opnsense-and-pia-private-internet-access.html

Every time I connect or disconnect OpenVPN client it causes huge latency spikes over all over interfaces, which disrupts connections.

Is there anything that can be done to avoid connection disruptions? I expect that other gateways should not be  affected.

I have Dual WAN setup and I expect failover to work, but instead when one interface goes down, OpenVPN client causes spike when it disconnects, and then it reconnects back, as a result for 3-5 min I have no connectivity until OpenVPN client figures it's own stuff out. I expect connectivity to work over another WAN but it doesn't.

OPNsense 21.1.7_1-amd64
FreeBSD 12.1-RELEASE-p18-HBSD
OpenSSL 1.1.1k 25 Mar 2021

Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz (8 cores)

Code: [Select]

64 bytes from 1.1.1.1: icmp_seq=2569 ttl=55 time=6.292 ms
64 bytes from 1.1.1.1: icmp_seq=2570 ttl=55 time=5.674 ms
64 bytes from 1.1.1.1: icmp_seq=2571 ttl=55 time=6.311 ms
64 bytes from 1.1.1.1: icmp_seq=2572 ttl=55 time=892.511 ms
64 bytes from 1.1.1.1: icmp_seq=2573 ttl=55 time=40.314 ms
64 bytes from 1.1.1.1: icmp_seq=2574 ttl=55 time=263.691 ms
64 bytes from 1.1.1.1: icmp_seq=2575 ttl=55 time=5.366 ms
64 bytes from 1.1.1.1: icmp_seq=2576 ttl=55 time=6.065 ms
64 bytes from 1.1.1.1: icmp_seq=2577 ttl=55 time=407.396 ms
64 bytes from 1.1.1.1: icmp_seq=2578 ttl=55 time=22.910 ms
64 bytes from 1.1.1.1: icmp_seq=2579 ttl=55 time=207.658 ms
64 bytes from 1.1.1.1: icmp_seq=2580 ttl=55 time=5.991 ms
64 bytes from 1.1.1.1: icmp_seq=2581 ttl=55 time=5.907 ms
64 bytes from 1.1.1.1: icmp_seq=2582 ttl=55 time=348.674 ms
64 bytes from 1.1.1.1: icmp_seq=2583 ttl=55 time=24.305 ms
64 bytes from 1.1.1.1: icmp_seq=2584 ttl=55 time=29.940 ms
64 bytes from 1.1.1.1: icmp_seq=2585 ttl=55 time=6.225 ms
64 bytes from 1.1.1.1: icmp_seq=2586 ttl=55 time=5.809 ms
64 bytes from 1.1.1.1: icmp_seq=2587 ttl=55 time=5.713 ms
64 bytes from 1.1.1.1: icmp_seq=2588 ttl=55 time=5.625 ms
64 bytes from 1.1.1.1: icmp_seq=2589 ttl=55 time=6.158 ms
64 bytes from 1.1.1.1: icmp_seq=2590 ttl=55 time=342.989 ms