Hi Larry,
It is evaluated and made visible by the script, however it should not be a concern as it is almost immediate. It is done when the page is parsed (not fully rendered yet) so during the actual rendering it should be open.
However, if it’s a concern or there are more scripts evaluated during that time, you can forcefully make them visible via a custom CSS snippet, which is effectively immediate if placed in the header:
.asp_ss_6 {
display: block !important;
visibility: visible !important;
opacity: 1 !important;
}I hope this helps!