Help with my mana curve?

[agile socket]

So last night I played the LOTR Scry deck I just built and it actually put up a pretty decent game against the RDW clone my ex plays, but it was slow so I wanna try to smooth it out a bit. Here's the current decklist:
https://archidekt.com/decks/4935715

and here's the one I've been working on, including some cards I ordered playsets of so I can sideboard/tune:
https://archidekt.com/decks/4969289/_v2

I don't actually know much about mana curves beyond the basic tempo stuff, so I don't know just how hard I should lean into cutting my 3-drops and 4-drops. I mean I was playing against a red deck so my inclination is to build with nothing above 2 mana, but the 3 and 4 drops are so powerful and I want to be able to deal with other decks too lol (I'm taking it to play with my commander pod between games tonight)

(oh the deck title is "Mithlond" in runic, which is the elvish name for the Grey Havens, and I don't care that it's insufferable lol "Elf Scry" was boring af)

[molten bobcat]

Definitely get [[Yavimaya Coast]] it's super cheap right now

[wheat raptor]

https://scryfall.com/card/dmu/261/yavimaya-coast

Yavimaya Coast

Land
: Add .
: Add or . Yavimaya Coast deals 1 damage to you.
As magnigoth trees expanded across the sea into Almaaz and New Argive, it became clear Yavimaya's borders were never confined by its coastline.

[spiral flicker]

you are looking for lands only?

or are you looking to ramp?

or to cut your 4drops to curve nicer

i dont know if you saw the last thread of my last post but i basically cut many of the 4 drops too and the fact many of them are legendaries i only had 2 copies each

[agile socket]

idk I think I want to trim my 4-drops down a bit more but I was hoping somebody would come unload a treatise on mana curves so I could inform my decisions a little more deeply lol I'm having a hard time how much engine I need vs. how much gas

[spiral flicker]

I'm not sure what you need?