Quicken extremely slow and taking up to 28% of CPU

Question

Help! Quicken has become unbearably slow.  Task manager shows it peaking at 28% of CPU.

Ross · Answer

I have been noticing the same CPU usage and wait times when typing for several weeks. I cannot even type a manual transaction without waiting for each letter to show up.

QWnotMuchLonger · Answer

Remember how Quicken used to work prior to 2022? When you would activate/deactivate an account to be able to download transactions again after a SNAFU, it wouldn't go back and update your beginning balance without telling you. I spent hours trying to reconcile several months ago. I would not have discovered this had I not had a backup to bring up and compare to understand why I could no longer reconcile. Quicken has done this several times to my balances. Now, I keep an untouched copy on another computer that I can bring up when I need to UN-update the initial balance that Quicken decided to adjust without telling me.  My point: the code that has worked well for years appears to have been "upgraded" to "fix" situations that it thinks is a problem. Unfortunately, some of the upgrades have been at the cost of the basic reliable functionality Quicken used to provide, as well as these performance issues. I initially thought the performance issues were related to the updates, but I don't have to be updating at all to experience these same "slow" issues. Quicken used to save time, but these days, I'm waiting on Quicken instead of it waiting on me.

Chris_QPW · Answer

The first thing I would try is uninstall and installing Quicken.  If that doesn't correct the problem this might be the problem:
https://community.quicken.com/discussion/7923154/slowdowns-and-not-enough-memory-to-proceed-errors