@crynard54 it does seem like you might have some speed issues in general and we are working those in the other forum thread. About VPN, yes geostationary satellite has compatibility issues (see VPN over Satellite - Project Faster for a description) mainly because the VPN causes our embedded TCP optimization to get bypassed. We are working with VPN vendors to improve things but have no good progress to report yet.
For conference calls, many enterprises configure the Zoom traffic to bypass the VPN tunnel. Is that something your IT department might consider doing? Some further info on this can be found here: Configuration Only Optimization - Project Faster.