Portal 7.4 does not load properly on IE11

Dear Experts

We are currently trying to run Portal 7.4 SP10 on IE 11, however getting issues while loading the Portal. We are using the Ajax framework with the standards mode enabled.

first, it takes a lot of time to load the Portal on IE11. The browser gets freeze for longer time. On Chrome it runs fine.

The Portal Content Admin does not open

Regards

Sandip