### 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
if (keys.has("page")) {
					texture_idx = keys["page"].to_int();
				}
				if (keys.has("xadvance")) {
					advance.x = keys["xadvance"].to_int();
				}
				if (advance.x < 0) {
					advance.x = size.width + 1;
				}
				if (keys.has("chnl")) {
					channel = keys["chnl"].to_int();
				}
				int ch_off = 0;
				if (packed) {
					switch (channel) {
						case 1:
							ch_off = 2;
							break; 
						case 2:
							ch_off = 1;
							break; 
						case 4:
							ch_off = 0;
							break; 
						case 8:
							ch_off = 3;
							break; 
						default:
							ch_off = 0;
							break;