That is my exact same experience.
In good tookits you have good native components, good Dropdown, GridView,DataView even AdvancedDataView , I could put in a native tookit 1 million items in such a widget and have no more performance hit then 20 items where with web the best practice is to implement pagination.
Imagine a CSV editor implemented in web with the "native" components, you will have to paginate the CSV file after each 20 rows.
In good toolkits you just drop the native widget and customize it, and if some idiot will say that native is not customizable then let me tell you that you have no idea what you are talking about, you could customize as much as you want, even paint the pixels one by one if needed and still get performance when you have a table with 1 million of customized widgets.
You can have a super fast CSV editor online, in fact I made one: https://www.editcsvonline.com/. It's based on my product DataGridXL, which, I believe, is the fastest Data Grid out there.
Editing cell values with EditCSVOnline is faster than it is in Google Sheets :-)
I did not say it is impossible, but it is not a simpel thing like on a toolkit where you would
1 add a DataGrid widget
2 connect a data provider
3 setup special rendering functions for some columns (only if needed)
4 define sorting functions if needed
And that is all, you get performance, sorting, column resizing, re-ordering for free, you can focus on the business logic and not on creating a DataGrid widget from scratch and fixing bugs for years until you get to 20% of the performance and features of similar desktop native one.
TLDR , web needs widgets like desktop toolkits for people that want to focus on bussiness logic, for the rest they can use more simple things they create themselves or npm install or buy some more cool widgets.
With current web tech we spend to much time on re-creating functionality(not styling), have often you see borken menus or dropdowns on websites? Wouldn't a native dropdown that could be styles or a native menu widget that could be styles would make things much better ?
Imagine a CSV editor implemented in web with the "native" components, you will have to paginate the CSV file after each 20 rows.
In good toolkits you just drop the native widget and customize it, and if some idiot will say that native is not customizable then let me tell you that you have no idea what you are talking about, you could customize as much as you want, even paint the pixels one by one if needed and still get performance when you have a table with 1 million of customized widgets.