[performance] Can more tables be supported?

[toolin-fox]

When I import more than 30 tables from sql at once, the operation is very stuck and slow

[FelixZY]

@toolin-fox are you referring to the import process or the responsiveness of the UI after import?

[git20190108]

@FelixZY
I also encountered the same problem, the UI is unacceptably slow.
The canvas basically has no response, and even turning off the auto-save does not make any difference

[project0]

I have the same problem, with over 100 tables it becomes unusable.

[FelixZY]

@git20190108 @project0 the way I read this issue, the reporter has performance issues during the import process. Can you confirm that this is the case or would you say #154 is more applicable to your performance issues?

[project0]

@FelixZY The import itself was pretty fast, but navigating the rendered canvas afterwards is impossible (even after turning off autosave).
Just tried turning off the sidebar and it has definitely improved the situation. It is still a bit laggy, but it works quiet well.
So yes, seem to be related with the sidebar.

[git20190108]

@project0 @FelixZY Yes, the same applies to me .
After closing the sidebar, the speed is significantly improved