sometimes laggy performance

[Moritz Lürig]

I sometimes experience slight performance issues when working in the script window. E.g. when I type something the characters appear with a slight delay, or when I mark something with the cursor, it takes a second or so. 

I am not sure why this is, I feel like it hasn't always been like that. My project is medium sized (i.e. few hundred lines of code per module, 1 dozend modules), and I don't have all the modules open in tabs. I deactivated nearly all code introspection, and I tried running Python on different GPUs. Overall, the hardware I have should be more than enough for Spyder / Python to run swiftly (Lenovo T490 with 24 GB RAM). 

Any idea why I am experiencing these lags, or, any idea how I can trace potential performance bottlenecks?