InputEventMouseMotion lag

Help
1

Godot Version

4.6.2 stable

Question

so i’m building this musical tracker and i decided to set its UX paradigm when setting values by dragging the mouse into the Y or X axis (Y axis smaller values and X bigger increments/decrements). however i decided to make a stress test yesterday and after many notes added and many instruments, the input starts to slow down… the moment i click a field to edit, i set mouse to capture mode then i start the drag and each time there’s calculation, i modify only the selected label, nothing else! the weird part is if i set the value change by a keyboard key or even the mouse wheel, it just works with no lag at all

since i’m creating many labels, a Google search threw me that labels receiving input are the culprit, so i when i instantiate them (when creating an instrument), i’m disabling any type of input with

label.mouse_filter = Control.MOUSE_FILTER_IGNORE
label.focus_mode = Control.FOCUS_NONE
label.focus_behavior_recursive = Control.FOCUS_BEHAVIOR_DISABLED
label.mouse_filter = Control.MOUSE_FILTER_IGNORE
label.mouse_behavior_recursive = Control.MOUSE_BEHAVIOR_DISABLED

it doesn’t change anything… any other idea i can try out? usually the last instrument is the one which has the least amount of lag on the InputEvent

(each - - - - is a label inside a column that has a VBox and a HBox inside… no lag at all if i set these values by other means than the mouse drag)

Screenshot_20260509_155415
Screenshot_20260509_1554151112×541 6.62 KB

2

i end changing the paradigm to be around the numeric keypad, so we are just typing numbers directly but an untested solution to that i guess it would be to get node’s start and end position and draw another $label on top and then scroll through values there, with the consideration it should be instantiated out of the container node which holds all the thousands labels or maybe even re-parent it to the last index of the tree, which by my lack of understanding how the engine works, it seems Godot goes through all the nodes from the last to the first when updating values, so the nodes at the end/last position of the tree/parent are updated faster?