Alright, so not really sure what's going on but there's a particular combo which seems to be causing issues and I want to see if it's just me; Scrolling while using specifically the Select Tool on the Map Layer, when there are a number of drawings on the Map Layer. Not really sure why, but this particular combination of factors seems to generate a large amount of lag; bizarrely selecting any other tool, any other layer, or not having the drawings present on the layer seem to all factor into this. It's particularly noticeable when using click-and-drag movement to pan the screen. I've not really done rigorous testing on whether if this happens on other layers if there's enough drawings, as I mostly noticed it while setting up a bubble map using the drawn circle tool. If you want to recreate the conditions then the map setup was; Map Size: 50x50 Square Grid. Draw Tool: 6x6 Square Grid of Large Line-Width Circles in a grid with a 2-Square spacing from the map edge and each other. With that setup it should trigger the lag with the select tool and map layer selected. Pan around with the right-click and drag method to see the most amount of lag, it's still slightly present when using the scroll wheel but it's much less noticeable. While I'm not sure if it's a factor, I do have Beta-Features enabled on my end. You can see how switching layer, or even just switching to (for example) the draw tool will negate whatever is causing the lag. Not sure if it's related or not, but it also seems to no longer be possible to select circles drawn with the new drawing tool when using the select tool to click-and-drag a box over the drawings, curiously it seems to be the case that old circle drawings made with the pre-update draw tool can be selected in this fashion. While this could be a separate issue, I figured it worth bringing up; since I noticed that my older bubble maps do not have the lag issue in cases where the circles were drawn using the old version of the draw tool. Oh, and I guess since it's a potential factor; I'm using Firefox as my Web Browser. Anyway, a bit of a weird one and likely some stray noodle of code acting weirdly causing it if it's re-creatable, but thought it was worth a mention.