Page Metrics show site loads slow

Longtime lurker, first time poster.

I’ve had a website for a while, just got serious to turn it into a business. Added Media Vine to it recently. My page is really slow even though I have Lightspeed Cache and a dedicated server. Full disclosure, I’m an great at creating content but an amateur on backend tasks. Here is my Gtmetrix.

https://preview.redd.it/x6w3bavuc8bd1.png?width=993&format=png&auto=webp&s=690520ca3d1adfe7aa54fb0c3ad4ed4c347e771f

[Mobile page speed](https://preview.redd.it/u1auqdxnd8bd1.png?width=976&format=png&auto=webp&s=f799e9bd503aa613bb60e0460216e329364b8c04)

and here is my Google PageSpeed. Mobile is bad. Desktop is 93. I currently use a theme from Themeforest. What suggestions do you have?

 

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