就 or 才

就 and 才 both go right before the verb, and both show how the speaker feels about time or effort compared with what was expected.

• 就: sooner, earlier, faster or easier than expected. It usually comes with 了: 他六点就起床了 (he was up as early as six), 我五分钟就做完了 (I finished in just five minutes).
• 才: later, slower or harder than expected ("not until", "only then"). It does not take a sentence-final 了: 他七点半才来 (he didn't come until half past seven), 我找了半天才找到 (I only found it after searching for ages).

Look at the context: 比平时早, 很近, 不堵车 or 提前 point to 就; 比平时晚, 堵车, 太难了, 晚点 or 找了半天 point to 才. A final 了 in the sentence is also a strong hint for 就.