Not sure why there was a rush to implement segwit, it's not needed on this coin & anyone merge mining viacoin with p2pool (me included) will be unable to mine it once segwit comes into effect.

No SegWit's main purpose isn’t a capacity increase. It's for fixing malleability & making scripting easier to upgrade.
It also fixes some long-standing issues, like quadratic hashing.

With third-party and scriptSig malleability fixed, the Lightning Network is less complicated to implement and significantly more efficient in its use of space on the blockchain.
With scriptSig malleability removed, it also becomes possible to run lightweight Lightning clients.

Reduced UTXO growth will benefit miners, businesses, and users who run full nodes
which in turn helps maintain the current security of the Viacoin network as more users enter the system.
Users & developers who help minimise the growth of the UTXO set will benefit from lower fees compared to those who ignore the impact of their transactions on UTXO growth.

Easier changes to script opcodes will make advanced scripting in Viacoin easier.
This includes changes such as introducing Schnorr signatures, key recovery to shrink signature sizes, supporting sidechains & creating even smarter contracts by
using Merklized Abstract Syntax Trees (MAST) and other research-level ideas.