TemplateCreator::InstantiateAsync(...) is too slow

[donJoseLuis]

Quoting @hananiel from issue #1818 ; "Also, I was having trouble with the performance of this project running inside a Web Context. This call new TemplateCreator(EnvSettings).InstantiateAsync(...) seems to be taking over a second. Is there any way to make it faster?"

Extracted the performance issue out of #1818 .

[TimHess]

Quoting @hananiel from issue #1818 ; "Also, I was having trouble with the performance of this project running inside a Web Context. This call new TemplateCreator(EnvSettings).InstantiateAsync(...) seems to be taking over a second. Is there any way to make it faster?"

Extracted the performance issue out of #1818 .

@shirhatti This issue - though the original issue should be #1878