The purpose of increasing the block size was to increase the speed .This was done at the expense of some decentralisation thus undermining the block chains diversified nature and doing what Satoshi Nakomoto was trying to stop( i.e. giving power to less entities and moving towards bitcoin cash being in a position that it can be manipulated by large stakeholders including government).
As a result of the increase in block size Bitcoin cash can do about 40 transactions a minute this compares with 24,000 a minute for mastercard and visa http://blog.unibulmerchantservices.com/authorization-clearing-and-settlement-how-mastercard-works/
https://bitinfocharts.com/bitcoin cash/
This why the only way to compete with the current settlement system is to build a processing system on to of the bitcoin chain such as is proposed by lightning.
Increasing the block size results in the centralisation of the system . A centralisation of the system results in the subjection of the crypto to the trusted third party system. A return to the trusted third party system results in the control of the government and the banks . The control of the government and banks results in the continued theft of wealth from customers that Satoshi Nakomoto was trying to stop
