Lag when editing token?

I keep getting 10-15 second lag when editing token (especially HP), it is severely slowing down the pace of the game. Same lag when using cog at bottom of the token. I am using latest Firefox with hardware acceleration turned on and would prefer not to use Chrome since its so slow lately! Anyone else have this issue or know which API is the culprit? Shaped 18.1.11 / 13.3.0 "Starting webworker script..." "Loading 1017 translation strings to worker..." "It's A Trap!: Registered TrapTheme - default." "-=> MonsterHitDice v0.3.6 <=- [Mon Aug 15 2016 13:08:21 GMT+0000 (UTC)]" "-=> Ammo v0.3.7 <=- [Fri Mar 24 2017 13:39:53 GMT+0000 (UTC)]" "-=> GroupCheck v1.9 <=-" "-=> GroupInitiative v0.9.28 <=- [Thu Jan 11 2018 14:49:14 GMT+0000 (UTC)]" "-=> Torch v0.8.11 <=- [Thu Mar 30 2017 10:50:46 GMT+0000 (UTC)]" "-=> TokenMod v0.8.38 <=- [Thu Dec 07 2017 20:49:40 GMT+0000 (UTC)]" "-=> TokenNameNumber v0.5.12 <=- [Tue Jul 25 2017 15:01:48 GMT+0000 (UTC)]" "-=> Roll20AM v1.05 <=- [Wed Apr 05 2017 00:26:44 GMT+0000 (UTC)]" " > Updating Schema to v1.05 <" " >Stored settings loaded<" " >Tracks updated<" " >Help handout updated<" "-=> ApplyDamage v1.0 <=-" "5eShapedScript 1529786700841 WARN : Unrecognised entity type equipment" "5eShapedScript 1529786701139 INFO : -=> ShapedScript v13.3.0 <=-" "Script loaded: Critical Sound Effects" "Treasure Ready! Command: !treasure" "CombatTracker Ready! Command: !ct" "Concentration Ready! Command: !concentration" "DeathTracker Ready! Command: !dead" "Resizer Ready! Command: !resizer" "It's A Trap!: Registered TrapTheme - 5E-Generic." "StatusInfo Ready! Command: !condition" "☒☠☒ Initialized It's A Trap! using theme '5E-Generic' ☒☠☒" "5eShapedScript 1529786702510 INFO : Detected sheet version as : 18.1.11"

The API is event based and runs remotely in the cloud. It wouldn’t even be active in this scenario until after you hit enter on a change. Furthermore, the only lag you would see would be a delay in changing something as a result of your change, say if it was putting the red X on dead tokens. It would have nothing to do with the latency in the UI.  It’s more likely a result of the complexity of the character (many attributes) or something else operating locally (advanced fog of war?). 

I've had difficulties with this in the past using the Shaped Sheet for 5e.  Having many complex character sheets in the campaign definitely will increase lag.  Also, make sure you turn off any password management extensions (such as LastPass), as this has been identified as a possible culprit for increasing sheet lag.

Very important: turn off autofill on Firefox. This is a known interaction problem.