Hi, Do you think is tehre any interest to reduce the transaction fees for bitcoin? Many alts are focusing on speed and low fees while bitcoin has made little effort.
Sure there is. The primary purpose of Segwit was to address transaction malleability in Bitcoin. Eliminating unreliable transaction IDs was necessary to implement the Lightning Network (at least based on how current LN code is written).
The Lightning Network will leverage a network of payment channels to enable much cheaper, off-chain transactions. Basically, users will open channels with one another and with merchants/services/exchanges, creating a network. Each participant in this network locks some BTC into a special multi-sig address, which allows them to spend BTC within the Lightning Network. Whatever they spend off-chain in the LN will count against the BTC they've locked on-chain.
Since LN transactions don't require on-chain confirmation, they can have much lower costs (propagation, bandwidth).