Moving validator votes off-chain under Alpenglow is expected to reduce Solana's reported transaction counts and TPS because vote transactions are no longer included in blocks

From the articleSolana Activates Alpenglow on Mainnet, Swapping Out TowerBFT for a Faster Consensus Engine - UnchainedAlso in Solana activates Alpenglow upgrade, cuts transaction finality to 150ms, Solana's Alpenglow upgrade set to cut finality to 150ms