### 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
ERR_FAIL_COND_MSG((p_end >= 0xd800 && p_end <= 0xdfff) || (p_end > 0x10ffff), "Unicode parsing error: Invalid unicode codepoint " + String::num_int64(p_end, 16) + ".");
	MutexLock lock(fd->mutex);
	Vector2i size = _get_size_outline(fd, p_size);
	ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
	for (int64_t i = p_start; i <= p_end; i++) {
#ifdef MODULE_FREETYPE_ENABLED
		int32_t idx = FT_Get_Char_Index(fd->cache[size]->face, i);
		if (fd->cache[size]->face) {
			if (fd->msdf) {
				_ensure_glyph(fd, size, (int32_t)idx);
			} else {
				for (int aa = 0; aa < ((fd->antialiasing == FONT_ANTIALIASING_LCD) ? FONT_LCD_SUBPIXEL_LAYOUT_MAX : 1); aa++) {
					if ((fd->subpixel_positioning == SUBPIXEL_POSITIONING_ONE_QUARTER) || (fd->subpixel_positioning == SUBPIXEL_POSITIONING_AUTO && size.x <= SUBPIXEL_POSITIONING_ONE_QUARTER_MAX_SIZE)) {
						_ensure_glyph(fd, size, (int32_t)idx | (0 << 27) | (aa << 24));
						_ensure_glyph(fd, size, (int32_t)idx | (1 << 27) | (aa << 24));
						_ensure_glyph(fd, size, (int32_t)idx | (2 << 27) | (aa << 24));
						_ensure_glyph(fd, size, (int32_t)idx | (3 << 27) | (aa << 24));
					} else if ((fd->subpixel_positioning == SUBPIXEL_POSITIONING_ONE_HALF) || (fd->subpixel_positioning == SUBPIXEL_POSITIONING_AUTO && size.x <= SUBPIXEL_POSITIONING_ONE_HALF_MAX_SIZE)) {
						_ensure_glyph(fd, size, (int32_t)idx | (1 << 27) | (aa << 24));
						_ensure_glyph(fd, size, (int32_t)idx | (0 << 27) | (aa << 24));
					} else {
						_ensure_glyph(fd, size, (int32_t)idx | (aa << 24));
					}
				}
			}
		}
#endif
	}
}
void TextServerAdvanced::_font_render_glyph(const RID &p_font_rid, const Vector2i &p_size, int64_t p_index) {