It's been alot of experimenting (thanks to Fenhorn, omnipus and all you others for your inspiration and experimenting) to find the settings that work for me.
First off, we play IRL with a monitor that I, as a GM, share with a player-account that owns all the PC's. The players point out their actions on a physical map or monitor and I move them accordingly.
For me, the original grid size works best for measurements, blast radius etc. I keep the grid and have reduced the token size to 0.5 and I use the "pick up, hold shift, drop down" to place the tokens without grid-lock. I use tokens made in HeroForge with pointing weapons in a top down view so I can ctrl or shift-scrollwheel them into position to clarify when someone is in cover.