Cities Skylines 2 has had a rough old time of things. A lackluster launch, marred by performance issues aplenty, alongside a dearth of content compared to its long-running predecessor, left it between a rock and a hard place. Despite efforts from simulation game maker Colossal Order to get it into fighting shape, it's been an uphill battle. Having taken over the mantle at the start of the year, the incoming Iceflake Studios has had its work cut out for it. Now, the developer has put out a very techy blog post outlining where it feels the big roadblocks to smooth framerates are, and is releasing a benchmarking tool to help gather data moving forward.