Chrome 91 is 23% faster than before
See also: Chrome: The bug that prevented the creation of new files on Windows 10 has been fixed
Google Chrome 89, released in March, already added 8% savings on memory and around 3% on the GPU part, also improving the overall responsiveness of the web browser by up to 9%. These memory savings are all made possible by optimizing PartitionAlloc, Google’s memory allocator. Near 32 security holes are also corrected with Chrome 91.
All the technical details of this update can be found here.