When did you leave Crysis Remastered, it was criticized for technical issues and poor performance. The game had severe stuttering issues at launch and was mostly single-threaded. Fortunately, Crytek decided to improve the performance of the game with some post-launch updates. And now, after a year and a half after the launch, we can finally enjoy the game at a high frame rate.
As reported in 2020, Crysis Remastered had significant performance issues in CPU bound scenes. For example, this scene ran at 48fps at 1080p/Very High on an Intel i9 9900K PC with 16GB DDR4 at 3800MHz, Samsung 970 Pro SSD 1TB M.2 NVMe, 64-bit Windows 10 and NVIDIA GeForce RTX3080.
In November 2020, Crytek released a patch providing a 43.75% performance improvement in CPU-heavy areas. And with the latest update of the game, there is an 81% performance improvement compared to its launch version.
Here is the same scene with high CPU usage, with exactly the same settings (1080p/Very High). Also pay attention to CPU usage (the game is now heavily using four CPU cores).
Overall, Crytek has greatly improved the performance of the game with these post-launch updates.