Virtual Box 5.2: Windows 98 problems

[Joaquim]

i installed Windows 98 on Virtual Box 5.2, but i get 2 main problems:
1 - i can't test the Sound Blaster 16 sound on directx 9.0c.... why these problem? is the driver version or something? i used the driver from Windows 98 CD and even i found 1 from internet... but allways with some problems

2 - why i get several time for enter on Windows... it can take more or less 10 minutes... it's the CPU limite problem?(i found  the FIX95CPU.zip... but it's for Windows 95, and i can't use it on Windows 98... i had tested)