09 and 10 month of 2022, FIX Position Report very slow to answer on few brokers (ICMarkets, Pepperstone)

HI, so we have custom FIX + Other API desktop apps with quite few accounts on many brokers and all is working fine (with upgrades) since 2016.

That said, I have been upgrading from old REST to Open API, added FIX features, many, many stuff.

Never before had this issue and I think this is related to something in FIX system.

So, upon close on FIX, account sends Request For Position (with tag 721 as position). This is to confirm volume, not to accidentally "over-push" to other side (buy -> sell) etc..

Never before my system had this significant delay to get response back on many servers, many accounts.

Can someone check this out?

I have logs, so we can compare on some accounts. Want to verify if my side was OK, FIX server responded OK etc.. 

Thanks.