In the dosbox.conf file, try setting cycles to a higher value like 3500 instead of the default 1500.
Different dos programs need different values to perform suitably.
With this setting (or even higher) Windows 3.1 loads up reasonably well.
I have been to play the solitaire game by using the tab and enter keys.
Also if you have Alt key configured, you can access the various Windows menus.
But as far as using the mouse, I haven't been able to get it working.