It's you.
But keep in mind what you wrote: is TWS a *trading* app?
And the answer is Yes. (Or, "Yes" with an asterisk.)
*TWS, as delivered, is a glorified spreadsheet. But its configuration ability goes way beyond what (it seems) 90% of TWS retail users do. Interactive Brokers puts out TWS as a Subaru Integra, with the expectation that those who desire a turbo-charged WRX STi will go about doing so, on their own. They have spent the last 10+ years slapping these trading assistance tools together, without regard to how they actually work with most traders' operations. *Some* of them are nice; a *lot* of them should be re-classed as "strickly-Beta" and carry warning banners across their borders. (IMHO.)
So -- keep in mind that TWS is meant to *trade* -- "One Button, please! -- configurable baskets of contracts on a page -- different countries, different currencies, different expiries: push a button and GO!" ..... Anything more than that is window dressing: BYOB.