Comment by Lerc

In that case I think the best advice I can give here is to focus less on features you dislike in other things and conaider the problems caused by those things. Without being encumbered by legacy reqirements you are free to make any changes you want, but each part is workload. Start at the top of each symptomatic feature and work your way down until you can change the part that causes the symptoms. Some things might require going down to the core. Some could be fixed with top level changes. Focus on finding what makes things bad(and why) instead of identifying bad things.