Improve the speed of sending transactions to the RPC blockchain

Job ID: 30806458

Budget: $30 – $250 USD

Improve the speed of sending transactions to the RPC blockchain

I am working with 1 mainnet with free gas. Currently, when I send a conversion to buy a product, it's still slow compared to others. So the product will be bought by them and my transaction will fail
My transactions are 1 block higher than theirs by 5-10 units
I need to improve the code to send the transactions before them. Ignore the gas fee because this is 1 RPC for free gas
Related categories: Node.js Blockchain Ethereum