However, she said, "when you look at the willingness for (consumers) to extend themselves and take credit, it's just a softer story" compared to small business.
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"If you look at the underlying businesses, they're all performing strongly, growing strongly," she said, citing JPMorgan's leading investment banking fees, growth rates in deposits, and growth in asset management.
"The underlying performance of our businesses is what matters to us," she said. JPMorgan reported quarterly profit that topped analyst expectations and increased its dividend, but shares dipped as loan growth slowed and net revenue fell.
Lake said that mortgage charge-offs are diminishing steadily, but "while they're nowhere near where they need to be in terms of all-time lows, at some point they're going to get down there. Maybe towards the end of next year and into 2015."
(Read More: JPMorgan Chase Profit Beats, Dividend Up; Shares Slip)
After JPMorgan received permission from regulators to buy back stock, the remaining problems with the company were "qualitative issues, they're not quantitative issues for us," Lake said. "They're important and we're going to put in all the time and effort into fixing them."
The largest U.S. bank by deposits said it earned $1.59 a share on revenue of $25.8 billion. JPMorgan plans to raise its dividend to 38 cents a share from the current 30 cents, and repurchased $2.6 billion in common shares as a further reward for investors. It's also planning to buy another $6 billion over the next 12 months.
—Reuters contributed to this report.
—By CNBC's Paul Toscano. Follow him on Twitter and get the latest stories from "Squawk on the Street" @ToscanoPaul