Performance and Usability Concerns

I am a subscriber of Cursor, which is a powerful tool that currently no other IDE can surpass. However, I believe Cursor is deteriorating in quality, and I think it is time to voice my concerns:

Issue One: Problems with File Handling
The agents are no longer as intelligent as they used to be. They frequently fail to locate files, even when I have already @-referenced the file! When this happens, the system automatically creates the file in an unexpected directory and writes partial content into it. Unfortunately, this content is incomplete and has no practical effect. Moreover, the system executes unnecessary instructions, such as creating folders that I do not need or directly compiling my program, while all I want is to update the @-referenced file. The constant inability to locate files and the execution of irrelevant actions make my project chaotic.

Issue Two: Auto Mode Selection and Peak Period Problems

I have noticed an interesting issue regarding the auto mode selection model and the slow user peak period. The peak period usually occurs at night, around 3 o’clock New York time. During this time, Pro users who are on the slower subscription tier often encounter situations where neither Model 3.5 nor Model 3.7 can be used, or only one of them is available.

I checked the auto-selection option, which defaulted to Model 3.5 to provide services for me. However, it prompted me that there was a peak period and suggested I use Model 3.7 instead. I manually switched to Model 3.7 and found that it was functioning properly! This indicates that the auto-selection feature defaults exclusively to Model 3.5, which appears to be ineffective during peak periods.

Another frustrating aspect is that when slow users enter the peak period, I may have already started a conversation. There might not be a peak period at the beginning of the conversation, and the system might have already replied to me. However, midway through the operation, another peak period occurs, requiring me to resend the request. While I understand the necessity of peak period restrictions, I believe the system should wait until the current reply is completed before enforcing these restrictions, rather than interrupting the process halfway through.

Issue Three: Decline in Intelligence and Efficiency
Cursor has become significantly less intelligent than before, and it no longer follows my instructions as accurately as it once did. Before version 0.46, it usually took only three or four requests to complete a task. Now, however, it often requires more than ten requests. Initially, I thought this was because the Cursor team had downgraded our model to ensure better service quality for faster-tier users. To address this, I subscribed to Cursor again within the same month. Unfortunately, the situation remains unchanged. Cursor is still not following my instructions properly.

Additionally, the official version of Model 3.7 includes data for 2025, but Cursor only provides us with data for 2023. Although this detail may not be directly relevant, it reflects how Cursor has become much less capable than it was before version 0.46.

Final Thoughts
I hope the Cursor team will focus on resolving these existing issues instead of repeatedly shifting responsibility to Claude. I love Cursor very much because it has significantly reduced my workload in the past. However, the current state of the tool has left me deeply disappointed. I am now considering whether I should look for alternatives.

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The main problem I have is it crashes all the time. It seems to run out of memory. Otherwise it’s an amazing product!

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That’s correct.

  1. There is definitely a memory leak in cursor 0.47; it seems to be exacerbated by having lots of code tabs open and a large chat history. It slows everything down including selecting files. And then eventually things crash.

  2. Auto agent (ex yolo) mode opens a LOT of tabs and doesn’t close them when done. Suggestion for the cursor team: if no changes made, close the tab. Once changes are accepted, close the tab.

  3. I find the best outcome is to put the agent on sonnet-37 with thinking off. First of all, that saves fast queries due to the new 2x pricing. Secondly, it doesn’t seem to affect coding ability.

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Yes, check this:


Renamed a method and did not removed the fricking comment

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when it opens a new tab is that another thread opened? CPU etc.

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It’s definitely a lot slower for me since 0.47 (but maybe .46). It was always fast for me until very recently.

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I believe that is from the model not cursor

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I’m a heavy user, I pay over $100 per month and the last 24 hours working with Cursor and the Anthropic models have been a massive disapointment. Something has changed and the AI has been nothing more than c complete hinderance. I’m over this.

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Hi tks for the answer, I tested more and had no Idea why the answers were so bad. I tried every model, nothing in agent mode, but in ask mode I paste the code and it removes. So I don’t think is the model.

Maybe is not including the comments when generating the prompt for the model Idk.

Also, I had other errors that I solved by deleting the folder “~/Library/Application Support/Cursor” and now is working correctly.

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Hi, I had several issues yesterday too, solved by deleting the folder “~/Library/Application Support/Cursor” on Mac.

Hope it helps

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I had five crashes total — and all of them were yesterday. Was Sunday afternoon (3/23) a really bad day for Cursor?

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May I ask @CryHenry - Why do you pay $100 a month?? Does that mean that Unlimited does not mean Unlimited??? Please explain, I have been trying to get a response from Cursor for weeks about their pricing, to the point I had to sign up here, and I see that you are paying $100 a month… Why is this needed?

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Would this delete all cursor?

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In mac this deletes only the saved data. I had to login again, lost all my chat history but at least I was able to use the tool again. But the app is still available in the Applications folder

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Performance and crashes should be improved in 0.48.1, which is available under Cursor Settings > Beta > Update Frequency: Early Access

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I created an account just so I can comment and vent my frustrations as well. AS I TYPE THIS - Cursor crashed again. Sometimes when the AI is doing work my whole system locks up and I have to reboot.

Plus - every, maybe 30 seconds to a minute, the whole IDE locks up. I can’t type I can’t do anything. It’s like something on a timer is kicking off and it locks it up.

I’ve been using this heavily last few weeks and, just as my luck has it, I am wrapping up and almost ready to push to App Store and BAM! nothing but crashes, IDE lock ups, and man does it love to delete entire code blocks for no reason.

Frustrated is an understatement. Fix it!

Did you try 0.48?

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Not yet. I’ve read some reviews from others that have and it still seems like it’s not as dependable as earlier versions are. I think I may go back to .46 and see that is any better until .48 is out of beta and hopefully the devs listen and fix the real issues we are facing.

Cursor crashes too often. It has become unusable for anything except tiny programs that I can easily create elsewhere.

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