javascript reposition overflow table scroll position

I am drawing a table using a function after data is received from a GET request.
After I draw the table, I want to hold the scroll position relative to the previous table that was there before (all tables have overflow:auto;).

The way I overcome this problem is as follows:

  1. listen to the scroll
  2. store the scroll position in sessionStorage
  3. After the new table is drawn, I use .scrolLeft = sessionStorage.getItem('PosY')

This works fine as it does what I want it to do, but I get the following from Chrome Dev.

[Violation] Forced reflow while executing JavaScript took 51ms

I understand why I get this from Chrome Dev. but I want to know if there is another way to do this that will not give me this [Violation]

I have looked into listening to the DOM and repositioning upon changes, but this gives the same [Violation]

Any suggestions would be much appreciated, especially if there is some simple CSS.

No jQuery OR other Libraries, please.