I installed Bitcoin Full Node on Raspberry pi 3b+. Blockchain sync is dead slow because of less CPU. I Guess blockchain validation is time/CPU consuming thing. Is there a way to disable the validation and just download the chain? I understand the consequences. If my peers send wrong data, I will end up using wrong data. But I don't have an alternative. RPC calls are dead slow right now. I just need data to write some code.
Maybe you should not run a full node, but a lightweight wallet. A lightweight wallet does not download the full blockchain and is not time/gpu consuming.
You can try Electrum, many people use it here.