Processing Power
The algorithms used by Blockchain solutions are very complex. Servers, therefore, require high processing power and memory. Since transactions are processed in a networked environment and participants can have their servers across the world, high network bandwidth and data transmission speeds are required.
Blockchain developers are experimenting with new ways to optimize blockchain networks while significantly reducing processing power requirements, making them faster, cheaper, and more scalable for business purposes.
Businesses can also use "permissioned" blockchains, which only allow a certain number of trusted participants and thus require significantly less computing power and networking bandwidth to run.