### 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
FontGlyph chr;
	chr.found = true;
	chr.advance = advance;
	if (shape.validate() && shape.contours.size() > 0) {
		int w = (bounds.r - bounds.l);
		int h = (bounds.t - bounds.b);
		int mw = w + p_rect_margin * 4;
		int mh = h + p_rect_margin * 4;
		ERR_FAIL_COND_V(mw > 4096, FontGlyph());
		ERR_FAIL_COND_V(mh > 4096, FontGlyph());
		FontTexturePosition tex_pos = find_texture_pos_for_glyph(p_data, 4, Image::FORMAT_RGBA8, mw, mh, true);
		ERR_FAIL_COND_V(tex_pos.index < 0, FontGlyph());
		ShelfPackTexture &tex = p_data->textures.write[tex_pos.index];
		edgeColoringSimple(shape, 3.0); 
		msdfgen::Bitmap<float, 4> image(w, h); 
		DistancePixelConversion distancePixelConversion(p_pixel_range);
		msdfgen::Projection projection(msdfgen::Vector2(1.0, 1.0), msdfgen::Vector2(-bounds.l, -bounds.b));
		msdfgen::MSDFGeneratorConfig config(true, msdfgen::ErrorCorrectionConfig());
		MSDFThreadData td;
		td.output = &image;
		td.shape = &shape;
		td.projection = &projection;
		td.distancePixelConversion = &distancePixelConversion;
		WorkerThreadPool::GroupID group_task = WorkerThreadPool::get_singleton()->add_native_group_task(&TextServerFallback::_generateMTSDF_threaded, &td, h, -1, true, String("TextServerFBRenderMSDF"));
		WorkerThreadPool::get_singleton()->wait_for_group_task_completion(group_task);
		msdfgen::msdfErrorCorrection(image, shape, projection, p_pixel_range, config);
		{
			uint8_t *wr = tex.imgdata.ptrw();
			for (int i = 0; i < h; i++) {
				for (int j = 0; j < w; j++) {