As an additional thought you could reinstall Chrome. Avoid (for the moment) extra add-on's etc..
Then, if the problem continues, try to discover what your computer is doing during the delays.
You can use Task Manager or Resource Monitor to observe system performance (just use one at a time).
First while just letting the computer idle, then while doing light work/gaming but not being online. Then go online and browse as normal.
Key is to narrow down the source/reason for the delays. E.g., your ISP, your network, your computer, your software, etc...