Recognize statements like that are nebulous it doesn’t mean anything and provides no where near the amount of data someone would need to give actual solutions.
It would only have weight if there was prior high conversions over a long period to show this isn’t the norm for your specific business|market.
Low conversions can just be the permanent reality now and in the future.
You need to figure out the customer journey, where from, where they land, what they interact with, when/where they leave.
The “why” they leave isn’t a casual problem to solve, nor is the “why” they will buy.
Aesthetics,
The home page shocked faces may be a little to aggressive/dramatic for unaware visitors , or just simply the shy.
Or it could be perfect for the intended audience but it’s the type of thing that needs to be market tested; a/b tested.
The color scheme pops.
There is notable design intent but it’s incredibly inconsistent going between looking like every other run of the mill boxy drop shipping site to a custom effort in branding.