The big issue – your site is making 101 requests.
For comparison GeneratePress.com makes 39 – and all of these requests are made to the GP Server.
Go to the YSlow tab on GT Metrix. And work through them.
Of your 101 requests:
35 of them are related to JS and CSS files that can be combined using the Optimization Tips i provided
39 of them are being made to other servers – these are all related to you adverts. Each advert makes multiple requests, with separate DNS lookups and loads additional JS and CSS files. The more adverts you add – the worse it becomes. The only control you have here is to reduce your advertisement content ie. Less ads or more basic ads