Grep/File-based tools slow on Windows since 3.19.13

Hello, been using cursor for around 4 to 5 months now. This week im also noticing the behaviour described here.
i mostly use it on Grok 4.6 high with fast off which hasnt been an issue until this week which has turn unbearably slow.
its been over an hour so far on editing a csv file to determine the order of some tasks. it says its answering my follow-ups but im not really seeing an actual item being edited as it says its doing.

when i prompted if its stuck is because it says thinking however the thoughts dont really show its doing anything.. (when it appears stuck)
the issue im seeing is similar to what was described in this other forum item: The subagent just hung on “thinking”

not sure if relevant but my machine specs are: i9 14th gen intel processor, gen5 ssd, 64gb ddr5 and rtx 5080.


this is the request id on the chat im working on: d709de67-3027-4eac-a09f-1702f0221d24

update:
I left it running over night and it just ended up in a infinite recursion loop repeating the same thing over and over. im using grok 4.6, i then this morning reverted to before the prompt and asked kimi v3 instead and it managed do what i asked. I think the issue is with the model specifically.