GangWar Template - very slow loading in mobile web build

Hello!
I just bought a GangWar game template from the asset store. I made a build for mobile web and uploaded the game to the server. And I ran into a problem that the game takes a very long time to load, despite the fact that the build size is only 1.8 mb. Tried different versions of hosting. The game takes the same time to load everywhere.
At the very beginning of the game, a black screen appears for 3-4 seconds. Then the coconut logo appears, which lasts 6 instead of 3 seconds. Then the main scene loads, but the character models and sounds are not loaded and you have to wait another 10-20 seconds for them to load. Thus, the loading of the game takes almost 30 seconds.
Has anyone encountered this issue and can help?
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Can you show the link you bought in the asset store?

Try to check the network debugger in your chrome devtools, you can get more information.