### Godot version

8449592d92eaeef990f5502b419d491ee3eeb7a6

### System information

Windows 11

### Issue description

Zooming in the script editor on an empty script freezes the entire editor for a few seconds, but if the file is large then it freezes for 4-5 seconds (which is unacceptable). Looks like a recent regression.

### Steps to reproduce

Just zoom in/out on the large script file.

### Minimal reproduction project

N/A
ShapedTextDataAdvanced *sd = shaped_owner.get_or_null(p_shaped);
	ERR_FAIL_COND_V(!sd, 0.0);
	MutexLock lock(sd->mutex);
	if (!sd->valid) {
		const_cast<TextServerAdvanced *>(this)->_shaped_text_shape(p_shaped);
	}
	if (!sd->line_breaks_valid) {
		const_cast<TextServerAdvanced *>(this)->_shaped_text_update_breaks(p_shaped);
	}
	for (int i = 0; i < p_tab_stops.size(); i++) {
		if (p_tab_stops[i] <= 0) {
			return 0.0;
		}
	}
	int tab_index = 0;
	double off = 0.0;
	int start, end, delta;
	if (sd->para_direction == DIRECTION_LTR) {