Perhaps not those with traffic problems. Hopefully by then you've found a way to direct that traffic to useful revenue or have enough cash from your business to invest.
In OP's case, he's spending money on hosting a CPU-intensive blogging engine. In theory he could spend the same money on theming an efficient one.
In OP's case, he's spending money on hosting a CPU-intensive blogging engine. In theory he could spend the same money on theming an efficient one.